Werk #19515: Use locale-independent ISO date/time pickers in GUI forms
| Component | User interface | ||
| Title | Use locale-independent ISO date/time pickers in GUI forms | ||
| Date | Mar 23, 2026 | ||
| Level | Prominent Change | ||
| Class | New Feature | ||
| Compatibility | Compatible - no manual interaction needed | ||
| Checkmk versions & editions |
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Previously, the date and time controls in the downtime scheduling, problem acknowledgement, and notification test forms used native browser inputs. Their display format depended entirely on your browser and OS locale — so you might see mm/dd/yyyy with 12-hour AM/PM on an English system, while a German setup would show dd.mm.yyyy with 24-hour time. The "Server time (currently: ...)" text next to the inputs was also hardcoded to US format.
All date/time inputs now use custom picker components that consistently display dates as YYYY-MM-DD and time in 24-hour HH:MM format, regardless of your browser locale. The date picker includes a calendar popup for mouse-based selection, and the time picker offers scrollable hour/minute columns. Keyboard navigation (arrow keys, tab) works in both.