- users.time_zone (0034). An account without one takes the browser's zone
on its first page (POST /account/time-zone/adopt, never over a choice made
by hand); the session follows the account on every request.
- /account: who you are and the zone every page writes its times in,
reached from your name in the sidebar.
- formatting.when: 'Today 06:58', 'Yesterday 23:41', 'Tue 6 Oct 14:12',
'6 Oct 2025 14:12', 24-hour, in the reader's zone; |ago's hover is the
exact local moment instead of UTC; tz_label() for column headers.
- Audit log: When (EDT) with exact times, one detail fact a line, on classes.
- tzdata in the image, and the airgapped smoke checks a zone resolves.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
