Code-review follow-up. - The multi-day expansion in groupAgendaDays is shared with the agenda widget, but only the screen's summary was made day-aware — so the widget rendered the raw "start – end" on every spanned day, the very bug the screen fix cured. Hoist a pure agendaTimeLabel(event, day, zone) into the shared agenda layer and resolve strings from it in both the screen and the widget, so they label identically. (findings 1, 2) - groupAgendaDays could silently drop an instance whose clamped span was empty (firstDay > lastDay); floor lastDay at firstDay so a returned instance always surfaces on at least its first visible day. (finding 3) - agendaTimeLabel resolves the span days once instead of the summary recomputing them 2–3× per row. (finding 5) Finding 4 (within-day sort) needs no change: sorting by absolute start already places a still-running multi-day event at the top of each day it continues into, which is chronologically correct (it is ongoing from that day's midnight), and at its real start time on its first day. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>