Use minute precision for timetable date filters

CHANGELOG.md

@@ -9,6 +9,10 @@ All notable changes to this project will be documented in this file.
 - Added configurable audit events for media-library assets, managed fonts, and weather icon sets.
 - Added All / Between Dates / Before Date / After Date filtering to timetable regions, with optional inclusive start-time boundaries shared by previews and playback.
 
+### Changed
+
+- Timetable date-filter inputs retain the date, hours, and minutes but omit seconds.
+
 ### Fixed
 
 - Prevented deletion of media referenced from rich-text slide content.