diff --git a/app/src/main/java/de/jeanlucmakiola/clockula/ui/ring/TimeFormatting.kt b/app/src/main/java/de/jeanlucmakiola/clockula/ui/common/AlarmTimeFormatter.kt
similarity index 82%
rename from app/src/main/java/de/jeanlucmakiola/clockula/ui/ring/TimeFormatting.kt
rename to app/src/main/java/de/jeanlucmakiola/clockula/ui/common/AlarmTimeFormatter.kt
index 6f59c4e..263056f 100644
--- a/app/src/main/java/de/jeanlucmakiola/clockula/ui/ring/TimeFormatting.kt
+++ b/app/src/main/java/de/jeanlucmakiola/clockula/ui/common/AlarmTimeFormatter.kt
@@ -1,4 +1,4 @@
-package de.jeanlucmakiola.clockula.ui.ring
+package de.jeanlucmakiola.clockula.ui.common
 
 import android.text.format.DateFormat
 import androidx.compose.runtime.Composable
@@ -10,7 +10,11 @@ import java.time.LocalTime
 import java.time.format.DateTimeFormatter
 import java.time.format.FormatStyle
 
-/** Honours the user's 12/24-hour setting. Deliberately not unit-tested: it is one platform call. */
+/**
+ * Honours the user's 12/24-hour setting. Deliberately not unit-tested: it is
+ * one platform call. Shared by the ring screen, the alarm list and the editor,
+ * so all three read a time the same way (M5).
+ */
 @Composable
 internal fun rememberAlarmTimeFormatter(): (TimeOfDay) -> String {
     val context = LocalContext.current
diff --git a/app/src/main/java/de/jeanlucmakiola/clockula/ui/ring/RingScreen.kt b/app/src/main/java/de/jeanlucmakiola/clockula/ui/ring/RingScreen.kt
index 170c7fc..773dc69 100644
--- a/app/src/main/java/de/jeanlucmakiola/clockula/ui/ring/RingScreen.kt
+++ b/app/src/main/java/de/jeanlucmakiola/clockula/ui/ring/RingScreen.kt
@@ -33,6 +33,7 @@ import androidx.compose.ui.draw.scale
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import de.jeanlucmakiola.clockula.R
+import de.jeanlucmakiola.clockula.ui.common.rememberAlarmTimeFormatter
 import de.jeanlucmakiola.floret.identity.collapseExit
 import de.jeanlucmakiola.floret.identity.expandEnter
 import de.jeanlucmakiola.floret.identity.rememberReduceMotion