## Implementation Complete ### Changes Made Modified `getFullDateTime()` function in `server/static/js/datetime-utils.js:113-138`. **Before:** Verbose English format using `toLocaleString()`: ``` "Thursday, December 26, 2025 at 2:18:20 AM" ``` **After:** ISO-style format with manual formatting: ``` "2025-12-26 14:18 PST" ``` ### Implementation Details - Used `padStart(2, '0')` for zero-padded year, month, day, hours, minutes - Extracted timezone abbreviation via `toLocaleTimeString('en-US', { timeZoneName: 'short' })` - Updated JSDoc comment to document new format ### Verification 1. JavaScript syntax validated with `node --check` 2. Function tested directly with multiple ISO datetime inputs - all produce correct `YYYY-MM-DD HH:MM TZ` format 3. Edge cases handled: null, empty string, invalid dates all fallback correctly 4. Python test suite passed (2 pre-existing unrelated failures) ### Ready for QA Navigate to any page with datetime displays (e.g., /web/issues) and hover over any datetime value to verify the new tooltip format.