- Store a 'received' field (server clock) with every message - New first column with the reception time - Settings: time zone (browser, UTC, ~80 zones) and reception time format (YYYY-MM-DD - HH:MM:SS:mmm by default, ISO 8601, 12h, epoch...) - The chosen time zone applies to every date shown Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>