docs(changelog): note the duplicate-event action (#52)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

CHANGELOG.md

@@ -29,6 +29,21 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   a couple more file labels the same calendar data arrives under (`.vcs`
   vCalendar files and the `application/ics` type), so opening or sharing those
   into Calendula works too.
+- Keep today at the top of the agenda. A new **Always show today** setting
+  (Settings → Agenda, on by default) anchors today as the first entry in both the
+  Agenda screen and its home-screen widget even once nothing is left today —
+  under today's header a small "No more events today" card appears — so the first
+  events you see are clearly today's rather than a future day's. Turn it off to
+  keep the agenda purely upcoming. Thanks to @ptab for the suggestion ([#35]).
+- Duplicate an event. The event details now carry a **Duplicate** action that
+  opens the editor pre-filled with a copy of the event as a new, unsaved one, so
+  a one-off like a shift or an appointment can be recreated by just changing the
+  day and time instead of re-typing every field. The copy keeps the original's
+  time, and its title, location, notes, colour, guests and reminders come along;
+  it's saved as its own single event (any repeat is left off — add one in the
+  editor if you want it). Duplicate works from read-only calendars too, dropping
+  the copy into a writable one. Thanks to @internet-rando for the suggestion
+  ([#52]).
 
 ### Fixed
 - Reminders for events on another day no longer read as if they were today. A
@@ -945,8 +960,10 @@ automatically, with zero telemetry and no internet permission.
 [#34]: https://codeberg.org/jlmakiola/calendula/issues/34
 [#37]: https://codeberg.org/jlmakiola/calendula/issues/37
 [#39]: https://codeberg.org/jlmakiola/calendula/issues/39
+[#35]: https://codeberg.org/jlmakiola/calendula/issues/35
 [#40]: https://codeberg.org/jlmakiola/calendula/issues/40
 [#46]: https://codeberg.org/jlmakiola/calendula/issues/46
 [#47]: https://codeberg.org/jlmakiola/calendula/issues/47
 [#48]: https://codeberg.org/jlmakiola/calendula/issues/48
 [#49]: https://codeberg.org/jlmakiola/calendula/issues/49
+[#52]: https://codeberg.org/jlmakiola/calendula/issues/52

app/src/main/java/de/jeanlucmakiola/calendula/data/prefs/SettingsPrefs.kt

@@ -252,6 +252,20 @@ class SettingsPrefs @Inject constructor(
         store.edit { it[AGENDA_SHOW_RANGE_BAR_KEY] = enabled }
     }
 
+    /**
+     * Whether the agenda (both the in-app screen and the home-screen widget)
+     * always anchors today at the top with a "nothing left today" placeholder,
+     * even once today has no remaining events (issue #35). Default ON — makes
+     * today's events easy to tell apart from a future day's at a glance.
+     */
+    val agendaShowToday: Flow<Boolean> = store.data.map { prefs ->
+        prefs[AGENDA_SHOW_TODAY_KEY] ?: true
+    }
+
+    suspend fun setAgendaShowToday(enabled: Boolean) {
+        store.edit { it[AGENDA_SHOW_TODAY_KEY] = enabled }
+    }
+
     /**
      * The calendar view the app opens on (M1). Defaults to [CalendarView.Week] —
      * the historical hard-coded startup view — so existing users see no change
@@ -673,6 +687,8 @@ class SettingsPrefs @Inject constructor(
         internal val AGENDA_SCREEN_RANGE_KEY = stringPreferencesKey("agenda_screen_range")
         internal val AGENDA_WIDGET_RANGE_KEY = stringPreferencesKey("agenda_widget_range")
         internal val AGENDA_SHOW_RANGE_BAR_KEY = booleanPreferencesKey("agenda_show_range_bar")
+        internal val AGENDA_SHOW_TODAY_KEY =
+            booleanPreferencesKey("agenda_show_today")
         internal val TIME_FORMAT_KEY = stringPreferencesKey("time_format")
         internal val SHOW_HOUR_LINES_KEY = booleanPreferencesKey("show_hour_lines")
         internal val PAST_EVENT_DISPLAY_KEY = stringPreferencesKey("agenda_past_event_display")

app/src/main/java/de/jeanlucmakiola/calendula/ui/CalendarHost.kt

@@ -384,6 +384,14 @@ fun CalendarHost(
                         heldEditKey = key
                         editKey = key
                     },
+                    onDuplicate = { form ->
+                        // Reuse the prefilled-create overlay: a duplicate is a
+                        // fresh event, so it applies the default reminder like an
+                        // in-app new event (#52).
+                        importFormSource = ImportSource.Insert
+                        importForm = form
+                        detailKey = null
+                    },
                 )
             }
         }

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaRange.kt

@@ -1,10 +1,9 @@
 package de.jeanlucmakiola.calendula.ui.agenda
 
+import de.jeanlucmakiola.calendula.ui.common.localizedDateFormatter
 import kotlinx.datetime.DayOfWeek
 import kotlinx.datetime.LocalDate
 import java.time.YearMonth
-import java.time.format.DateTimeFormatter
-import java.time.format.FormatStyle
 import java.util.Locale
 
 /**
@@ -87,10 +86,12 @@ fun parseAgendaRange(stored: String?, default: AgendaRange): AgendaRange = when
 
 /**
  * The concrete span the range covers, starting at [start] through [end]
- * (inclusive), for a human-readable header:
- * - [AgendaRange.Day] → a single medium date ("27 Jun 2026")
+ * (inclusive), for a human-readable header. Both ends use the same day-month
+ * order so a span never mixes "15 Jul" with "Aug 13, 2026":
+ * - [AgendaRange.Day] → a single date ("27 Jun 2026")
  * - [AgendaRange.ThisMonth] → month and year ("June 2026")
- * - everything else → "start – end" ("27 Jun – 3 Jul 2026")
+ * - everything else → "start – end" ("27 Jun – 3 Jul 2026"), with the start's
+ *   year shown too only when it differs from the end's.
  */
 fun agendaRangeWindowSummary(
     range: AgendaRange,
@@ -100,11 +101,15 @@ fun agendaRangeWindowSummary(
 ): String {
     val javaStart = java.time.LocalDate.of(start.year, start.month.ordinal + 1, start.day)
     val javaEnd = java.time.LocalDate.of(end.year, end.month.ordinal + 1, end.day)
-    val medium = DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM).withLocale(locale)
+    val dayMonth = localizedDateFormatter(locale, "dMMM")
+    val dayMonthYear = localizedDateFormatter(locale, "dMMMy")
     return when (range) {
-        AgendaRange.Day -> medium.format(javaStart)
-        AgendaRange.ThisMonth -> DateTimeFormatter.ofPattern("LLLL yyyy", locale).format(javaStart)
-        else -> "${DateTimeFormatter.ofPattern("d MMM", locale).format(javaStart)} – ${medium.format(javaEnd)}"
+        AgendaRange.Day -> dayMonthYear.format(javaStart)
+        AgendaRange.ThisMonth -> localizedDateFormatter(locale, "LLLLy").format(javaStart)
+        else -> {
+            val startFmt = if (start.year == end.year) dayMonth else dayMonthYear
+            "${startFmt.format(javaStart)} – ${dayMonthYear.format(javaEnd)}"
+        }
     }
 }
 

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaScreen.kt

@@ -15,16 +15,17 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Coffee
-import androidx.compose.material.icons.filled.DateRange
 import androidx.compose.material.icons.filled.Menu
 import androidx.compose.material.icons.filled.Search
+import androidx.compose.material3.ButtonDefaults
+import androidx.compose.material3.Card
 import androidx.compose.material3.DrawerValue
+import androidx.compose.material3.FilledTonalButton
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
@@ -65,6 +66,7 @@ import de.jeanlucmakiola.calendula.ui.common.CalendarFabColumn
 import de.jeanlucmakiola.calendula.ui.common.CalendarFailure
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
 import de.jeanlucmakiola.calendula.ui.common.IMPLEMENTED_VIEWS
+import de.jeanlucmakiola.calendula.ui.common.localizedDateFormatter
 import de.jeanlucmakiola.calendula.ui.common.EventDimAlpha
 import de.jeanlucmakiola.floret.components.GroupedRow
 import de.jeanlucmakiola.floret.components.Position
@@ -83,7 +85,6 @@ import kotlinx.datetime.TimeZone
 import kotlinx.datetime.plus
 import kotlinx.datetime.toLocalDateTime
 import kotlin.time.Instant
-import java.time.format.TextStyle as JavaTextStyle
 import java.util.Locale
 
 private val zone = TimeZone.currentSystemDefault()
@@ -106,6 +107,7 @@ fun AgendaScreen(
     val state by viewModel.state.collectAsStateWithLifecycle()
     val anchor by viewModel.anchor.collectAsStateWithLifecycle()
     val pastDisplay by viewModel.pastEventDisplay.collectAsStateWithLifecycle()
+    val showToday by viewModel.showToday.collectAsStateWithLifecycle()
 
     val scrollBehavior = TopAppBarDefaults.pinnedScrollBehavior()
     val drawerState = rememberDrawerState(DrawerValue.Closed)
@@ -170,9 +172,11 @@ fun AgendaScreen(
                 successState?.takeIf { it.showRangeBar }?.let { s ->
                     Row(
                         verticalAlignment = Alignment.CenterVertically,
+                        // end aligns the selector's right edge with the top-bar view
+                        // switcher (its 8.dp margin + the app bar's 4.dp inset).
                         modifier = Modifier
                             .fillMaxWidth()
-                            .padding(start = 28.dp, end = 16.dp, top = 8.dp, bottom = 8.dp),
+                            .padding(start = 28.dp, end = 12.dp, top = 8.dp, bottom = 8.dp),
                     ) {
                         AgendaRangeBanner(
                             range = s.range,
@@ -190,6 +194,7 @@ fun AgendaScreen(
                 AgendaContent(
                     state = state,
                     pastDisplay = pastDisplay,
+                    showToday = showToday,
                     onRetry = viewModel::goToToday,
                     onEventClick = onEventClick,
                     onOpenDay = onOpenDay,
@@ -213,9 +218,11 @@ fun AgendaScreen(
 }
 
 /**
- * A compact tonal pill showing the agenda's current range. Tapping it opens the
- * range picker as a session-only override. Filled with the primary container
- * while an override is active, so the temporary state is obvious.
+ * The agenda's current range, tapped to open the range picker as a session-only
+ * override. Shares the top-bar view switcher's button shape so the two read as a
+ * family, but stays low-emphasis — a subtle neutral surface tint rather than the
+ * switcher's secondary container, so it doesn't compete. Fills with the primary
+ * container only while an override is active, to make that temporary state clear.
  */
 @Composable
 private fun AgendaRangePill(
@@ -224,43 +231,34 @@ private fun AgendaRangePill(
     onClick: () -> Unit,
     modifier: Modifier = Modifier,
 ) {
-    val container = if (isOverride) {
-        MaterialTheme.colorScheme.primaryContainer
-    } else {
-        MaterialTheme.colorScheme.surfaceContainerHigh
-    }
-    val content = if (isOverride) {
-        MaterialTheme.colorScheme.onPrimaryContainer
-    } else {
-        MaterialTheme.colorScheme.onSurfaceVariant
-    }
-    Surface(
-        color = container,
-        contentColor = content,
-        shape = RoundedCornerShape(50),
-        modifier = modifier.clickable(onClick = onClick),
+    FilledTonalButton(
+        onClick = onClick,
+        shape = MaterialTheme.shapes.large,
+        colors = ButtonDefaults.filledTonalButtonColors(
+            containerColor = if (isOverride) {
+                MaterialTheme.colorScheme.primaryContainer
+            } else {
+                MaterialTheme.colorScheme.surfaceContainerHigh
+            },
+            contentColor = if (isOverride) {
+                MaterialTheme.colorScheme.onPrimaryContainer
+            } else {
+                MaterialTheme.colorScheme.onSurfaceVariant
+            },
+        ),
+        modifier = modifier,
     ) {
-        Row(
-            verticalAlignment = Alignment.CenterVertically,
-            modifier = Modifier.padding(horizontal = 16.dp, vertical = 10.dp),
-        ) {
-            Icon(
-                imageVector = Icons.Filled.DateRange,
-                contentDescription = null,
-                modifier = Modifier.size(18.dp),
-            )
-            Spacer(Modifier.width(8.dp))
-            Text(
-                text = agendaRangeLabel(range),
-                style = MaterialTheme.typography.labelLarge,
-            )
-        }
+        Text(
+            text = agendaRangeLabel(range),
+            style = MaterialTheme.typography.labelLarge,
+        )
     }
 }
 
 /**
- * A header naming the concrete window currently shown, e.g. "Showing all events
- * for · Today, 27 Jun 2026" / "This week, 27 Jun – 3 Jul" / "This month, June 2026".
+ * A header naming the concrete window currently shown under a "showing …" label,
+ * e.g. "27 Jun 2026" / "27 Jun – 3 Jul 2026" / "June 2026". The range's name
+ * lives on the selector button beside it, so it isn't repeated here.
  */
 @Composable
 private fun AgendaRangeBanner(
@@ -277,8 +275,10 @@ private fun AgendaRangeBanner(
             style = MaterialTheme.typography.labelMedium,
             color = MaterialTheme.colorScheme.onSurfaceVariant,
         )
+        // Just the concrete dates — the range's name ("Next 30 days") already
+        // sits on the selector button to the right, so repeating it here is noise.
         Text(
-            text = "${agendaRangeLabel(range)}, $window",
+            text = window,
             style = MaterialTheme.typography.titleMedium,
             color = MaterialTheme.colorScheme.onSurface,
         )
@@ -289,6 +289,7 @@ private fun AgendaRangeBanner(
 private fun AgendaContent(
     state: AgendaUiState,
     pastDisplay: PastEventDisplay,
+    showToday: Boolean,
     onRetry: () -> Unit,
     onEventClick: (EventInstance) -> Unit,
     onOpenDay: (LocalDate) -> Unit,
@@ -304,7 +305,7 @@ private fun AgendaContent(
             // Hiding drops finished events — and any day they leave empty; dimming
             // keeps them but fades the row. Recomputed each minute so events fall
             // away (or fade) as they end while the screen stays open.
-            val days = if (pastDisplay == PastEventDisplay.HIDE) {
+            val filtered = if (pastDisplay == PastEventDisplay.HIDE) {
                 state.days.mapNotNull { day ->
                     val remaining = day.events.filterNot { it.hasEnded(now) }
                     if (remaining.isEmpty()) null else day.copy(events = remaining)
@@ -312,6 +313,14 @@ private fun AgendaContent(
             } else {
                 state.days
             }
+            // Anchor today with a "nothing left today" placeholder — but only when
+            // the window actually starts on today; a jumped-to date has no today in
+            // it, so anchoring there would be misleading (#35).
+            val days = anchorTodayIfMissing(
+                days = filtered,
+                today = state.today,
+                enabled = showToday && state.anchor == state.today,
+            )
             if (days.isEmpty()) {
                 AgendaEmpty(modifier)
             } else {
@@ -349,17 +358,24 @@ private fun AgendaList(
             stickyHeader(key = "header-${day.date}") {
                 AgendaDayHeader(date = day.date, today = today, onOpenDay = onOpenDay)
             }
-            itemsIndexed(
-                items = day.events,
-                key = { _, event -> event.instanceId },
-            ) { index, event ->
-                AgendaEventRow(
-                    event = event,
-                    position = positionOf(index, day.events.size),
-                    dimmed = dimPast && event.hasEnded(now),
-                    modifier = animateItemMotion(),
-                    onClick = { onEventClick(event) },
-                )
+            if (day.events.isEmpty()) {
+                // An anchored, event-less today (#35) — "nothing left today".
+                item(key = "placeholder-${day.date}") {
+                    AgendaEmptyDayRow(onClick = { onOpenDay(day.date) })
+                }
+            } else {
+                itemsIndexed(
+                    items = day.events,
+                    key = { _, event -> event.instanceId },
+                ) { index, event ->
+                    AgendaEventRow(
+                        event = event,
+                        position = positionOf(index, day.events.size),
+                        dimmed = dimPast && event.hasEnded(now),
+                        modifier = animateItemMotion(),
+                        onClick = { onEventClick(event) },
+                    )
+                }
             }
             item(key = "gap-${day.date}") { Spacer(Modifier.height(8.dp)) }
         }
@@ -391,6 +407,44 @@ private fun AgendaDayHeader(
     }
 }
 
+/**
+ * A card under an anchored, event-less today (#35) — the same coffee-cup motif
+ * as the full-screen [AgendaEmpty] state, boxed into a card so today keeps a
+ * visible slot when nothing is left rather than a bare header.
+ */
+@Composable
+private fun AgendaEmptyDayRow(onClick: () -> Unit) {
+    Card(
+        // Match a single event row's resting corner radius (floret groupedShape).
+        shape = RoundedCornerShape(22.dp),
+        modifier = Modifier
+            .fillMaxWidth()
+            .padding(horizontal = 16.dp, vertical = 4.dp)
+            .clickable(onClick = onClick),
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(vertical = 18.dp, horizontal = 16.dp),
+            horizontalAlignment = Alignment.CenterHorizontally,
+        ) {
+            Icon(
+                imageVector = Icons.Filled.Coffee,
+                contentDescription = null,
+                tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier.size(36.dp),
+            )
+            Spacer(Modifier.height(8.dp))
+            Text(
+                text = stringResource(R.string.agenda_no_more_today),
+                style = MaterialTheme.typography.bodyLarge,
+                color = MaterialTheme.colorScheme.onSurfaceVariant,
+                textAlign = TextAlign.Center,
+            )
+        }
+    }
+}
+
 @Composable
 private fun AgendaEventRow(
     event: EventInstance,
@@ -520,7 +574,7 @@ private fun formatTime(instant: Instant, is24Hour: Boolean, locale: Locale): Str
 private fun formatAgendaDate(date: LocalDate): String {
     val locale = Locale.getDefault()
     val java = java.time.LocalDate.of(date.year, date.month.ordinal + 1, date.day)
-    val weekday = java.dayOfWeek.getDisplayName(JavaTextStyle.SHORT, locale)
-    val monthName = java.month.getDisplayName(JavaTextStyle.SHORT, locale)
-    return "$weekday, ${date.day}. $monthName ${date.year}"
+    // Weekday + date in the locale's own field order (e.g. "Wed, Jun 17, 2026"
+    // vs "Mi., 17. Juni 2026") rather than a hardcoded day-month-year layout.
+    return localizedDateFormatter(locale, "EEEdMMMy").format(java)
 }

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaUiState.kt

@@ -41,6 +41,24 @@ fun groupAgendaDays(
             )
         }
 
+/**
+ * Ensure [today] surfaces as the first agenda day even when it carries no
+ * (remaining) events, by prepending an empty-event [AgendaDay] the agenda widget
+ * renders as a "nothing left today" placeholder. A no-op unless [enabled], and
+ * when today already has its own day in [days]. Keeps today anchored at the top
+ * so a glance tells today's events apart from a future day's (issue #35).
+ */
+fun anchorTodayIfMissing(
+    days: List<AgendaDay>,
+    today: LocalDate,
+    enabled: Boolean,
+): List<AgendaDay> =
+    if (enabled && days.none { it.date == today }) {
+        listOf(AgendaDay(today, emptyList())) + days
+    } else {
+        days
+    }
+
 /**
  * State for the Agenda view: a flat, forward-looking list of upcoming events
  * grouped by day (only days that actually have events appear).

app/src/main/java/de/jeanlucmakiola/calendula/ui/agenda/AgendaViewModel.kt

@@ -66,6 +66,19 @@ class AgendaViewModel @Inject constructor(
             initialValue = PastEventDisplay.SHOW,
         )
 
+    /**
+     * Whether to keep today anchored at the top with a "nothing left today"
+     * placeholder even once it has no remaining events (#35). A display concern
+     * applied in the composition (after past-event filtering), so it rides
+     * alongside the data state like [pastEventDisplay] rather than re-querying.
+     */
+    val showToday: StateFlow<Boolean> = settingsPrefs.agendaShowToday
+        .stateIn(
+            scope = viewModelScope,
+            started = SharingStarted.WhileSubscribed(5_000L),
+            initialValue = true,
+        )
+
     private val zone = TimeZone.currentSystemDefault()
 
     private val todayDate: LocalDate

app/src/main/java/de/jeanlucmakiola/calendula/ui/common/LocaleSupport.kt

@@ -4,6 +4,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.remember
 import androidx.compose.ui.platform.LocalConfiguration
 import androidx.core.os.ConfigurationCompat
+import java.time.format.DateTimeFormatter
 import java.util.Locale
 
 /**
@@ -18,3 +19,15 @@ fun currentLocale(): Locale {
         ConfigurationCompat.getLocales(configuration).get(0) ?: Locale.getDefault()
     }
 }
+
+/**
+ * A [DateTimeFormatter] for [skeleton]'s fields laid out in [locale]'s own order
+ * (via Android's best-pattern matching), so dates read naturally per locale
+ * instead of a hardcoded day-month-year order. [skeleton] lists the wanted
+ * fields, e.g. "dMMMy" (day, abbreviated month, year) or "EEEdMMM" (weekday too).
+ */
+fun localizedDateFormatter(locale: Locale, skeleton: String): DateTimeFormatter =
+    DateTimeFormatter.ofPattern(
+        android.text.format.DateFormat.getBestDateTimePattern(locale, skeleton),
+        locale,
+    )

app/src/main/java/de/jeanlucmakiola/calendula/ui/detail/EventDetailScreen.kt

@@ -32,6 +32,7 @@ import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.automirrored.filled.Notes
 import androidx.compose.material.icons.filled.CalendarMonth
+import androidx.compose.material.icons.filled.ContentCopy
 import androidx.compose.material.icons.filled.Delete
 import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material.icons.filled.Notifications
@@ -87,6 +88,7 @@ import de.jeanlucmakiola.calendula.domain.AttendeeRelationship
 import de.jeanlucmakiola.calendula.domain.AttendeeStatus
 import de.jeanlucmakiola.calendula.domain.AttendeeType
 import de.jeanlucmakiola.calendula.domain.Availability
+import de.jeanlucmakiola.calendula.domain.EventForm
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.EventStatus
 import de.jeanlucmakiola.calendula.domain.RecurringWriteScope
@@ -116,7 +118,10 @@ import kotlin.time.Instant
  * top-bar arrow both return to the calendar. Events in writable calendars can
  * be deleted (v1.1) and edited (v1.3) from here; [onEdit] opens the shared
  * event form for this occurrence — for recurring events the form asks how
- * far the change reaches when saving.
+ * far the change reaches when saving. [onDuplicate] opens the same form
+ * seeded with a copy of this event as a new, unsaved event (#52) — offered
+ * for any event, including read-only ones, since the copy lands in an
+ * editable calendar.
  */
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -126,6 +131,7 @@ fun EventDetailScreen(
     endMillis: Long,
     onBack: () -> Unit,
     onEdit: () -> Unit,
+    onDuplicate: (EventForm) -> Unit,
     viewModel: EventDetailViewModel = hiltViewModel(),
 ) {
     LaunchedEffect(eventId, beginMillis, endMillis) {
@@ -160,15 +166,14 @@ fun EventDetailScreen(
     }
 
     // v1.0 installs only hold READ_CALENDAR; the first write asks for the
-    // upgrade in place. Granting continues straight into the tapped action.
-    var pendingEdit by remember { mutableStateOf(false) }
+    // upgrade in place. Granting continues straight into the tapped action —
+    // edit, delete, or duplicate — held here until the result comes back.
+    var pendingWrite by remember { mutableStateOf<(() -> Unit)?>(null) }
     val writePermissionLauncher = rememberLauncherForActivityResult(
         contract = ActivityResultContracts.RequestPermission(),
     ) { granted ->
-        if (granted) {
-            if (pendingEdit) onEdit() else showDeleteDialog = true
-        }
-        pendingEdit = false
+        if (granted) pendingWrite?.invoke()
+        pendingWrite = null
     }
     val hasWritePermission = {
         ContextCompat.checkSelfPermission(
@@ -176,21 +181,20 @@ fun EventDetailScreen(
             Manifest.permission.WRITE_CALENDAR,
         ) == PackageManager.PERMISSION_GRANTED
     }
-    val onDeleteClick = {
+    val requireWrite: (() -> Unit) -> Unit = { action ->
         if (hasWritePermission()) {
-            showDeleteDialog = true
+            action()
         } else {
-            pendingEdit = false
+            pendingWrite = action
             writePermissionLauncher.launch(Manifest.permission.WRITE_CALENDAR)
         }
     }
-    val onEditClick = {
-        if (hasWritePermission()) {
-            onEdit()
-        } else {
-            pendingEdit = true
-            writePermissionLauncher.launch(Manifest.permission.WRITE_CALENDAR)
-        }
+    val onDeleteClick = { requireWrite { showDeleteDialog = true } }
+    val onEditClick = { requireWrite(onEdit) }
+    // Duplicate reads the loaded detail into a create form and hands it up; the
+    // create still needs WRITE_CALENDAR even when the source is read-only.
+    val onDuplicateClick = {
+        requireWrite { viewModel.duplicateForm()?.let(onDuplicate) }
     }
 
     val deleteFailedMessage = stringResource(R.string.event_delete_failed)
@@ -229,7 +233,8 @@ fun EventDetailScreen(
                 },
                 actions = {
                     val s = state
-                    // Share works for any loaded event — it only reads the event.
+                    // Share and duplicate work for any loaded event — both only
+                    // read it; the duplicate is created into a writable calendar.
                     if (s is EventDetailUiState.Success) {
                         IconButton(onClick = onShareClick) {
                             Icon(
@@ -237,6 +242,15 @@ fun EventDetailScreen(
                                 contentDescription = stringResource(R.string.event_detail_share),
                             )
                         }
+                        IconButton(
+                            onClick = onDuplicateClick,
+                            enabled = deleteState != DeleteUiState.Deleting,
+                        ) {
+                            Icon(
+                                imageVector = Icons.Default.ContentCopy,
+                                contentDescription = stringResource(R.string.event_detail_duplicate),
+                            )
+                        }
                     }
                     // Edit/delete need a writable calendar — WebCal subscriptions,
                     // birthday calendars etc. are read-only at the provider level.

app/src/main/java/de/jeanlucmakiola/calendula/ui/detail/EventDetailViewModel.kt

@@ -8,10 +8,12 @@ import de.jeanlucmakiola.calendula.data.calendar.CalendarRepository
 import de.jeanlucmakiola.calendula.data.calendar.NoSuchEventException
 import de.jeanlucmakiola.calendula.data.di.IoDispatcher
 import de.jeanlucmakiola.calendula.data.ics.IcsExporter
+import de.jeanlucmakiola.calendula.domain.EventForm
 import de.jeanlucmakiola.calendula.domain.FailureReason
 import de.jeanlucmakiola.calendula.domain.RecurringWriteScope
 import de.jeanlucmakiola.calendula.domain.ics.IcsWriter
 import de.jeanlucmakiola.calendula.domain.ics.toShareIcsEvent
+import de.jeanlucmakiola.calendula.domain.toEditForm
 import kotlinx.coroutines.CoroutineDispatcher
 import kotlinx.coroutines.withContext
 import kotlin.time.Clock
@@ -28,6 +30,7 @@ import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.launch
+import kotlinx.datetime.TimeZone
 import kotlin.coroutines.cancellation.CancellationException
 import kotlin.time.Instant
 import javax.inject.Inject
@@ -138,6 +141,31 @@ class EventDetailViewModel @Inject constructor(
         }.getOrNull()
     }
 
+    /**
+     * Build a create form seeded from the open event so the user can save a
+     * copy as a new, independent event (#52). Returns null when nothing is
+     * loaded.
+     *
+     * The recurrence is dropped — a duplicate is a single event; anyone who
+     * wants a series can re-add one in the edit form that opens. The source
+     * calendar is kept only when it's writable, otherwise the id is cleared so
+     * the create resolves to the last-used/first-writable calendar — which lets
+     * a read-only event (a WebCal subscription, a birthday) be copied into an
+     * editable calendar. The occurrence's own times carry over unchanged.
+     */
+    fun duplicateForm(): EventForm? {
+        val loaded = state.value as? EventDetailUiState.Success ?: return null
+        val detail = loaded.detail
+        return detail.toEditForm(
+            beginMillis = detail.instance.start.toEpochMilliseconds(),
+            endMillis = detail.instance.end.toEpochMilliseconds(),
+            zone = TimeZone.currentSystemDefault(),
+        ).copy(
+            rrule = null,
+            calendarId = detail.instance.calendarId.takeIf { loaded.canModify },
+        )
+    }
+
     private suspend fun loadDetail(target: Target): EventDetailUiState = try {
         val detail = repository.eventDetail(target.eventId)
         // The Events row holds the series start; replace it with this

app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/SettingsScreen.kt

@@ -631,6 +631,18 @@ private fun AppearanceScreen(
             position = Position.Middle,
             onClick = { showAgendaWidgetRange = true },
         )
+        GroupedRow(
+            title = stringResource(R.string.settings_agenda_show_today),
+            summary = stringResource(R.string.settings_agenda_show_today_hint),
+            position = Position.Middle,
+            trailing = {
+                Switch(
+                    checked = state.agendaShowToday,
+                    onCheckedChange = viewModel::setAgendaShowToday,
+                )
+            },
+            onClick = { viewModel.setAgendaShowToday(!state.agendaShowToday) },
+        )
         GroupedRow(
             title = stringResource(R.string.settings_agenda_range_bar),
             summary = stringResource(R.string.settings_agenda_range_bar_hint),

app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/SettingsUiState.kt

@@ -39,6 +39,8 @@ data class SettingsUiState(
     val agendaScreenRange: AgendaRange = AgendaRange.Month,
     /** How far ahead the agenda widget shows events (v2.11). */
     val agendaWidgetRange: AgendaRange = AgendaRange.Month,
+    /** Whether the agenda (screen + widget) always anchors today at the top (#35). */
+    val agendaShowToday: Boolean = true,
     /** Whether the agenda shows its top range bar — header + switcher (v2.11). */
     val agendaShowRangeBar: Boolean = true,
     /** The calendar view the app opens on, and the home of the view back stack (M1). */

app/src/main/java/de/jeanlucmakiola/calendula/ui/settings/SettingsViewModel.kt

@@ -37,6 +37,7 @@ import de.jeanlucmakiola.calendula.ui.theme.AppFontSettings
 import de.jeanlucmakiola.calendula.ui.theme.FONT_CUSTOM_TOKEN
 import de.jeanlucmakiola.calendula.widget.agenda.AGENDA_PAST_DISPLAY_KEY
 import de.jeanlucmakiola.calendula.widget.agenda.AGENDA_RANGE_KEY
+import de.jeanlucmakiola.calendula.widget.agenda.AGENDA_SHOW_TODAY_STATE_KEY
 import de.jeanlucmakiola.calendula.widget.agenda.AgendaWidget
 import de.jeanlucmakiola.calendula.widget.month.MonthWidget
 import kotlinx.coroutines.CoroutineDispatcher
@@ -116,14 +117,20 @@ class SettingsViewModel @Inject constructor(
                 prefs.agendaScreenRange,
                 prefs.agendaWidgetRange,
                 prefs.timeFormat,
-                // Two grid-display toggles folded into one flow so they fit this
-                // group — the outer combine is already at its five-arg limit.
-                combine(prefs.showHourLines, prefs.showWeekNumbers, ::Pair),
-            ) { view, screenRange, widgetRange, timeFormat, gridToggles ->
+                // Display toggles folded into one flow so they fit this group —
+                // the outer combine is already at its five-arg limit.
+                combine(
+                    prefs.showHourLines,
+                    prefs.showWeekNumbers,
+                    prefs.agendaShowToday,
+                    ::Triple,
+                ),
+            ) { view, screenRange, widgetRange, timeFormat, toggles ->
                 ViewSettings(
                     view, screenRange, widgetRange, timeFormat,
-                    showHourLines = gridToggles.first,
-                    showWeekNumbers = gridToggles.second,
+                    showHourLines = toggles.first,
+                    showWeekNumbers = toggles.second,
+                    agendaShowToday = toggles.third,
                 )
             },
             combine(
@@ -147,6 +154,7 @@ class SettingsViewModel @Inject constructor(
                 timeFormat = views.timeFormat,
                 showHourLines = views.showHourLines,
                 showWeekNumbers = views.showWeekNumbers,
+                agendaShowToday = views.agendaShowToday,
                 agendaShowRangeBar = misc.showRangeBar,
                 autofocusEventTitle = misc.autofocusEventTitle,
                 pastEventDisplay = misc.pastEventDisplay,
@@ -220,6 +228,7 @@ class SettingsViewModel @Inject constructor(
         val timeFormat: TimeFormatPref,
         val showHourLines: Boolean,
         val showWeekNumbers: Boolean,
+        val agendaShowToday: Boolean,
     )
 
     private data class MiscSettings(
@@ -398,6 +407,22 @@ class SettingsViewModel @Inject constructor(
         viewModelScope.launch { prefs.setAgendaShowRangeBar(enabled) }
     }
 
+    fun setAgendaShowToday(enabled: Boolean) {
+        viewModelScope.launch {
+            prefs.setAgendaShowToday(enabled)
+            // The agenda widget reads this reactively, so push it into each
+            // instance's Glance state and recompose — same reliable-update path as
+            // setPastEventDisplay (updateAll alone won't re-run the data preamble).
+            widgetRefreshMutex.withLock {
+                val manager = GlanceAppWidgetManager(appContext)
+                manager.getGlanceIds(AgendaWidget::class.java).forEach { id ->
+                    updateAppWidgetState(appContext, id) { it[AGENDA_SHOW_TODAY_STATE_KEY] = enabled }
+                }
+                AgendaWidget().updateAll(appContext)
+            }
+        }
+    }
+
     fun setTimeFormat(pref: TimeFormatPref) {
         viewModelScope.launch { prefs.setTimeFormat(pref) }
     }

app/src/main/java/de/jeanlucmakiola/calendula/widget/WidgetData.kt

@@ -66,6 +66,12 @@ sealed interface AgendaWidgetData {
         val savedRange: AgendaRange,
         /** Saved past-event display pref — the fallback before Glance state is set. */
         val savedPastDisplay: PastEventDisplay,
+        /**
+         * Saved "always show today" pref (#35) — anchors today at the top with a
+         * placeholder even when it has no events left. The fallback read reactively
+         * from Glance state before an instance has its own state set.
+         */
+        val savedShowToday: Boolean,
         /** Snapshot instant the data was read at, for "has this event ended?" tests. */
         val now: Instant,
     ) : AgendaWidgetData
@@ -117,6 +123,7 @@ internal suspend fun Context.loadAgendaWidgetData(): AgendaWidgetData {
     val prefs = ep.settingsPrefs()
     val savedRange = prefs.agendaWidgetRange.first()
     val savedPastDisplay = prefs.pastEventDisplay.first()
+    val showToday = prefs.agendaShowToday.first()
     val weekStart = prefs.weekStart.first().resolveFirstDay(Locale.getDefault())
     // Load the widest selectable window once; the displayed range is sliced in
     // the composition from Glance state, so changing the range is a plain
@@ -132,6 +139,7 @@ internal suspend fun Context.loadAgendaWidgetData(): AgendaWidgetData {
         weekStart = weekStart,
         savedRange = savedRange,
         savedPastDisplay = savedPastDisplay,
+        savedShowToday = showToday,
         now = Clock.System.now(),
     )
 }

app/src/main/java/de/jeanlucmakiola/calendula/widget/agenda/AgendaWidget.kt

@@ -6,6 +6,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import androidx.datastore.preferences.core.booleanPreferencesKey
 import androidx.datastore.preferences.core.stringPreferencesKey
 import androidx.glance.ColorFilter
 import androidx.glance.GlanceId
@@ -48,11 +49,13 @@ import de.jeanlucmakiola.calendula.data.prefs.parsePastEventDisplay
 import de.jeanlucmakiola.calendula.domain.EventInstance
 import de.jeanlucmakiola.calendula.domain.hasEnded
 import de.jeanlucmakiola.calendula.ui.agenda.AgendaRange
+import de.jeanlucmakiola.calendula.ui.agenda.anchorTodayIfMissing
 import de.jeanlucmakiola.calendula.ui.agenda.dayCount
 import de.jeanlucmakiola.calendula.ui.agenda.parseAgendaRange
 import de.jeanlucmakiola.calendula.ui.common.CalendarView
 import de.jeanlucmakiola.calendula.ui.common.EventDimAlpha
 import de.jeanlucmakiola.calendula.ui.common.formatTimeOfDay
+import de.jeanlucmakiola.calendula.ui.common.localizedDateFormatter
 import de.jeanlucmakiola.floret.components.pastelize
 import de.jeanlucmakiola.calendula.widget.AgendaWidgetData
 import de.jeanlucmakiola.calendula.widget.CalendulaGlanceTheme
@@ -65,7 +68,6 @@ import kotlinx.datetime.TimeZone
 import kotlinx.datetime.plus
 import kotlinx.datetime.toLocalDateTime
 import kotlin.time.Instant
-import java.time.format.TextStyle as JavaTextStyle
 import java.util.Locale
 
 /**
@@ -91,6 +93,14 @@ internal val AGENDA_RANGE_KEY = stringPreferencesKey("agenda_range")
  */
 internal val AGENDA_PAST_DISPLAY_KEY = stringPreferencesKey("agenda_past_display")
 
+/**
+ * Per-instance Glance state key holding the "always show today" toggle (#35).
+ * Read reactively in the composition for the same reason as [AGENDA_RANGE_KEY] —
+ * so toggling the setting reflects on the live widget without depending on the
+ * `provideGlance` preamble re-running.
+ */
+internal val AGENDA_SHOW_TODAY_STATE_KEY = booleanPreferencesKey("agenda_show_today")
+
 class AgendaWidget : GlanceAppWidget() {
 
     override val stateDefinition = PreferencesGlanceStateDefinition
@@ -118,6 +128,8 @@ class RefreshAgendaAction : ActionCallback {
 private sealed interface AgendaRow {
     data class Header(val date: LocalDate, val today: LocalDate) : AgendaRow
     data class Event(val event: EventInstance) : AgendaRow
+    /** "Nothing left today" line under an anchored, event-less today (#35). */
+    data class Placeholder(val date: LocalDate) : AgendaRow
 }
 
 @Composable
@@ -139,37 +151,49 @@ private fun AgendaWidgetBody(data: AgendaWidgetData, dark: Boolean) {
                 val range = parseAgendaRange(currentState(AGENDA_RANGE_KEY), data.savedRange)
                 val pastDisplay =
                     parsePastEventDisplay(currentState(AGENDA_PAST_DISPLAY_KEY), data.savedPastDisplay)
+                val showToday = currentState(AGENDA_SHOW_TODAY_STATE_KEY) ?: data.savedShowToday
                 val rangeEnd = data.today.plus(
                     range.dayCount(data.today, data.weekStart) - 1,
                     DateTimeUnit.DAY,
                 )
                 // Slice to the chosen range, then drop finished events (and any day
                 // they leave empty) when the mode is Hide — so "Upcoming" really is.
-                val visibleDays = data.days
-                    .filter { it.date <= rangeEnd }
-                    .let { days ->
-                        if (pastDisplay == PastEventDisplay.HIDE) {
-                            days.mapNotNull { day ->
-                                val remaining = day.events.filterNot { it.hasEnded(data.now) }
-                                if (remaining.isEmpty()) null else day.copy(events = remaining)
+                // Finally re-anchor today (as an empty placeholder day) when the
+                // "always show today" pref is on and today has no events left (#35).
+                val visibleDays = anchorTodayIfMissing(
+                    days = data.days
+                        .filter { it.date <= rangeEnd }
+                        .let { days ->
+                            if (pastDisplay == PastEventDisplay.HIDE) {
+                                days.mapNotNull { day ->
+                                    val remaining = day.events.filterNot { it.hasEnded(data.now) }
+                                    if (remaining.isEmpty()) null else day.copy(events = remaining)
+                                }
+                            } else {
+                                days
                             }
-                        } else {
-                            days
-                        }
-                    }
+                        },
+                    today = data.today,
+                    enabled = showToday,
+                )
                 if (visibleDays.isEmpty()) {
                     WidgetMessage(R.string.agenda_empty_title)
                 } else {
                     val rows = buildList {
                         visibleDays.forEach { day ->
                             add(AgendaRow.Header(day.date, data.today))
-                            day.events.forEach { add(AgendaRow.Event(it)) }
+                            if (day.events.isEmpty()) {
+                                add(AgendaRow.Placeholder(day.date))
+                            } else {
+                                day.events.forEach { add(AgendaRow.Event(it)) }
+                            }
                         }
                     }
                     LazyColumn(modifier = GlanceModifier.fillMaxSize()) {
                         items(rows.size) { index ->
                             when (val row = rows[index]) {
                                 is AgendaRow.Header -> DayHeaderRow(row.date, row.today)
+                                is AgendaRow.Placeholder -> PlaceholderRow(row.date)
                                 is AgendaRow.Event -> EventRow(
                                     event = row.event,
                                     dark = dark,
@@ -262,6 +286,44 @@ private fun DayHeaderRow(date: LocalDate, today: LocalDate) {
     )
 }
 
+/**
+ * A card under an anchored, event-less today (#35) — echoing the widget's
+ * full-empty message ("You're all caught up" here becomes "No more events
+ * today") in a rounded surface so today's slot never looks like a bare header.
+ */
+@Composable
+private fun PlaceholderRow(date: LocalDate) {
+    val context = androidx.glance.LocalContext.current
+    Box(
+        modifier = GlanceModifier
+            .fillMaxWidth()
+            .padding(horizontal = 4.dp, vertical = 4.dp)
+            .clickable(
+                actionStartActivity(
+                    MainActivity.openDateIntent(context, date, CalendarView.Agenda),
+                ),
+            ),
+        contentAlignment = Alignment.Center,
+    ) {
+        Box(
+            modifier = GlanceModifier
+                .fillMaxWidth()
+                .background(GlanceTheme.colors.surfaceVariant)
+                .cornerRadius(16.dp)
+                .padding(vertical = 18.dp, horizontal = 12.dp),
+            contentAlignment = Alignment.Center,
+        ) {
+            Text(
+                text = context.getString(R.string.agenda_no_more_today),
+                style = TextStyle(
+                    color = GlanceTheme.colors.onSurfaceVariant,
+                    fontSize = 14.sp,
+                ),
+            )
+        }
+    }
+}
+
 @Composable
 private fun EventRow(event: EventInstance, dark: Boolean, is24Hour: Boolean, dimmed: Boolean) {
     val context = androidx.glance.LocalContext.current
@@ -337,9 +399,9 @@ private fun agendaDayLabel(context: Context, date: LocalDate, today: LocalDate):
     }
     val locale = Locale.getDefault()
     val java = java.time.LocalDate.of(date.year, date.month.ordinal + 1, date.day)
-    val weekday = java.dayOfWeek.getDisplayName(JavaTextStyle.SHORT, locale)
-    val monthName = java.month.getDisplayName(JavaTextStyle.SHORT, locale)
-    val formatted = "$weekday, ${date.day} $monthName"
+    // Weekday + date in the locale's own field order (compact: no year), rather
+    // than a hardcoded day-month layout.
+    val formatted = localizedDateFormatter(locale, "EEEdMMM").format(java)
     return if (relative != null) "$relative · $formatted" else formatted
 }
 

app/src/main/res/values/strings.xml

@@ -49,6 +49,7 @@
     <string name="event_detail_edit">Edit</string>
     <string name="event_detail_delete">Delete</string>
     <string name="event_detail_share">Share</string>
+    <string name="event_detail_duplicate">Duplicate</string>
     <string name="event_share_chooser_title">Share event</string>
     <string name="event_share_failed">Couldn\'t share this event.</string>
     <string name="event_delete_title">Delete event?</string>
@@ -255,6 +256,7 @@
     <string name="agenda_header_today">Today</string>
     <string name="agenda_header_tomorrow">Tomorrow</string>
     <string name="agenda_empty_title">You\'re all caught up</string>
+    <string name="agenda_no_more_today">No more events today</string>
 
     <!-- Event search -->
     <string name="search_action">Search</string>
@@ -321,6 +323,8 @@
     <string name="settings_agenda_range_hint">How far ahead the Agenda screen lists events.</string>
     <string name="settings_agenda_widget_range">Agenda widget range</string>
     <string name="settings_agenda_widget_range_hint">How far ahead the agenda home-screen widget lists events.</string>
+    <string name="settings_agenda_show_today">Always show today</string>
+    <string name="settings_agenda_show_today_hint">Keep today at the top of the agenda and its widget, even once nothing is left today.</string>
     <string name="settings_agenda_range_bar">Range bar</string>
     <string name="settings_agenda_range_bar_hint">Show a bar at the top of the agenda naming the dates shown, with a button to switch the range for the session</string>
     <string name="agenda_range_day">Today</string>

app/src/test/java/de/jeanlucmakiola/calendula/ui/agenda/AnchorTodayTest.kt

@@ -0,0 +1,39 @@
+package de.jeanlucmakiola.calendula.ui.agenda
+
+import com.google.common.truth.Truth.assertThat
+import kotlinx.datetime.LocalDate
+import org.junit.jupiter.api.Test
+
+/** Covers the agenda widget's "always show today" anchor logic (#35). */
+class AnchorTodayTest {
+
+    private val today = LocalDate(2026, 6, 17)
+    private val tomorrow = LocalDate(2026, 6, 18)
+
+    @Test
+    fun `disabled leaves the days untouched even when today is absent`() {
+        val days = listOf(AgendaDay(tomorrow, emptyList()))
+        assertThat(anchorTodayIfMissing(days, today, enabled = false)).isEqualTo(days)
+    }
+
+    @Test
+    fun `enabled prepends an empty today when it is missing`() {
+        val days = listOf(AgendaDay(tomorrow, emptyList()))
+        val result = anchorTodayIfMissing(days, today, enabled = true)
+        assertThat(result).hasSize(2)
+        assertThat(result.first()).isEqualTo(AgendaDay(today, emptyList()))
+        assertThat(result[1]).isEqualTo(days.first())
+    }
+
+    @Test
+    fun `enabled anchors today into an otherwise empty list`() {
+        val result = anchorTodayIfMissing(emptyList(), today, enabled = true)
+        assertThat(result).containsExactly(AgendaDay(today, emptyList()))
+    }
+
+    @Test
+    fun `enabled is a no-op when today already has its own day`() {
+        val days = listOf(AgendaDay(today, emptyList()), AgendaDay(tomorrow, emptyList()))
+        assertThat(anchorTodayIfMissing(days, today, enabled = true)).isEqualTo(days)
+    }
+}