Audit every place a time is rendered (timeline hover/inline, day dividers, room-list last message, search results, thread panel, pinned menu, edit history, scheduled tray, reminders, jump-to-time) and the format each uses; then route all of them through one helper honouring dateFormatString and the 12/24 h preference, with consistent rules: today → time; yesterday → "Yesterday 21:14"; this week → weekday + time; older → date. Pure function, unit-tested; no visual change beyond consistency.
Audit every place a time is rendered (timeline hover/inline, day dividers, room-list last message, search results, thread panel, pinned menu, edit history, scheduled tray, reminders, jump-to-time) and the format each uses; then route all of them through one helper honouring `dateFormatString` and the 12/24 h preference, with consistent rules: today → time; yesterday → "Yesterday 21:14"; this week → weekday + time; older → date. Pure function, unit-tested; no visual change beyond consistency.
jared
added this to the Features 2026-Q4 milestone 2026-09-17 16:26:17 -04:00
formatFriendlyDateTime → Today at 15:30 / Tomorrow at 09:00 / Mon at 09:00 / 12 Jan 2026 at 09:00
search cache "oldest", room insights range + "last updated", lightbox date
toLocale*String
format(ts,'date') / 'time'
jump-to-time chips, message aria-label, "Created by … on"
D MMMM YYYY fixed
user date format
Left alone on purpose: the media gallery's month section headers ("September 2026") and the calendar widget's month labels — they're not timestamps.
utils/formatTimestamp.ts is pure (injected now), 11 unit tests; useTimestampFormatter() binds it to hour24Clock + dateFormatString. 12-hour times stay zero-padded (09:14 PM) exactly as before, so the timeline looks the same today.
Done in 4d4a7621.
### Audit → what each place used → now
| surface | before | now |
|---|---|---|
| timeline hover/inline (`Time`) | time / `Yesterday time` / `date time` | `format(ts)` — same, plus weekday for the last 6 days |
| day dividers (room + thread) | Today / Yesterday / `D MMMM YYYY` | `formatDayDivider` — Today / Yesterday / **Monday** / user date format |
| forwarded header, thread summary chip, device "Last activity", kick/ban alerts, edit history | four hand-rolled copies of the same branch (edit history said `date at time`) | `format(ts)` |
| read receipts | `Today at…` / `Mon 5 at…` (hard-coded month/day order) | `format(ts)` |
| room list DM time | `5m` / `3h` / `Yesterday` / `D MMM` (ignored date pref) | `formatShortAge` — same shape, date per pref with the year dropped when current |
| bookmarks, threads list, media gallery tiles, activity log (`en-US` forced!) | three relative-age variants ending in a locale-default date | `formatRelativeAge` — `just now` / `5m ago` / `3h ago` / `yesterday` / `3d ago` / user date |
| scheduled tray, schedule preview, reminders, notification snooze | `toLocaleTimeString` (ignored 12/24 h) | `formatFriendlyDateTime` → `Today at 15:30` / `Tomorrow at 09:00` / `Mon at 09:00` / `12 Jan 2026 at 09:00` |
| search cache "oldest", room insights range + "last updated", lightbox date | `toLocale*String` | `format(ts,'date')` / `'time'` |
| jump-to-time chips, message aria-label, "Created by … on" | `D MMMM YYYY` fixed | user date format |
Left alone on purpose: the media gallery's month section headers ("September 2026") and the calendar widget's month labels — they're not timestamps.
`utils/formatTimestamp.ts` is pure (injected `now`), 11 unit tests; `useTimestampFormatter()` binds it to `hour24Clock` + `dateFormatString`. 12-hour times stay zero-padded (`09:14 PM`) exactly as before, so the timeline looks the same today.
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Audit every place a time is rendered (timeline hover/inline, day dividers, room-list last message, search results, thread panel, pinned menu, edit history, scheduled tray, reminders, jump-to-time) and the format each uses; then route all of them through one helper honouring
dateFormatStringand the 12/24 h preference, with consistent rules: today → time; yesterday → "Yesterday 21:14"; this week → weekday + time; older → date. Pure function, unit-tested; no visual change beyond consistency.Done in
4d4a7621.Audit → what each place used → now
Time)Yesterday time/date timeformat(ts)— same, plus weekday for the last 6 daysD MMMM YYYYformatDayDivider— Today / Yesterday / Monday / user date formatdate at time)format(ts)Today at…/Mon 5 at…(hard-coded month/day order)format(ts)5m/3h/Yesterday/D MMM(ignored date pref)formatShortAge— same shape, date per pref with the year dropped when currenten-USforced!)formatRelativeAge—just now/5m ago/3h ago/yesterday/3d ago/ user datetoLocaleTimeString(ignored 12/24 h)formatFriendlyDateTime→Today at 15:30/Tomorrow at 09:00/Mon at 09:00/12 Jan 2026 at 09:00toLocale*Stringformat(ts,'date')/'time'D MMMM YYYYfixedLeft alone on purpose: the media gallery's month section headers ("September 2026") and the calendar widget's month labels — they're not timestamps.
utils/formatTimestamp.tsis pure (injectednow), 11 unit tests;useTimestampFormatter()binds it tohour24Clock+dateFormatString. 12-hour times stay zero-padded (09:14 PM) exactly as before, so the timeline looks the same today.