Fixed by changing the Updated column in the milestones table from `data-date-only` to `data-relative`. **File changed**: `server/templates/partials/milestones_table.html:64` **Change**: Replaced `data-date-only` with `data-relative` on the datetime element for the Updated column. **Verification**: - Test suite passes (1414 passed, 2 pre-existing failures unrelated to this change) - Pattern matches issues_table.html and projects_table.html which already use `data-relative` for their Updated columns - The Due column intentionally remains unchanged (uses date input for editing) **Expected behavior after change**: - Updated column will show relative dates like '5 min ago', '2 days ago' - Tooltip on hover shows full datetime in 'YYYY-MM-DD HH:MM TZ' format