| Kelsterbach Tofield | Mountain Time | 08:00 |
| Kelsterbach Zillah | Pacific Time | 09:00 |
| Kelsterbach Zikhron Ya'akov | Israel Time | -01:00 |
| Kelsterbach Zirakpur | India Standard Time | -03:30 |
| Kelsterbach Zollikerberg | Central European Time | 00:00 |
| Kelsterbach Zofingen | Central European Time | 00:00 |
| Kelsterbach Weaverville | Pacific Time | 09:00 |
| Kelsterbach Webbers Falls | Central Time | 07:00 |
| Kelsterbach Webster | Central Time | 07:00 |
| Kelsterbach Wayne | Eastern Time | 06:00 |
| Kelsterbach Waynesville | Eastern Time | 06:00 |
| Kelsterbach Wayville | Central Australia Time | -07:30 |
| Kelsterbach Wayzata | Central Time | 07:00 |
| Kelsterbach Waverley | Eastern Australia Time | -08:00 |
| Kelsterbach Wavre | Central European Time | 00:00 |
| Kelsterbach Zhongshan | China Time | -06:00 |
| Kelsterbach Warrandyte | Eastern Australia Time | -08:00 |
| Kelsterbach Warnsveld | Central European Time | 00:00 |
| Kelsterbach Warners Bay | Eastern Australia Time | -08:00 |
| Kelsterbach Warrington | Eastern Time | 06:00 |
| Kelsterbach Warrenton | Central Time | 07:00 |
| Kelsterbach Warrensville Heights | Eastern Time | 06:00 |
| Kelsterbach Wasserburg am Inn | Central European Time | 00:00 |
| Kelsterbach Washington | Eastern Time | 06:00 |
| Kelsterbach Washington | Eastern Time | 06:00 |
| Kelsterbach Wasilla | Alaska Time | 10:00 |
| Kelsterbach Wasaga Beach | Eastern Time | 06:00 |
| Kelsterbach Warsaw | Eastern Time | 06:00 |
| Kelsterbach Watson | Eastern Australia Time | -08:00 |
| Kelsterbach Watkins Glen | Eastern Time | 06:00 |
| Kelsterbach Watkinsville | Eastern Time | 06:00 |
| Kelsterbach Wattwil | Central European Time | 00:00 |
| Kelsterbach Waupaca | Central Time | 07:00 |
| Kelsterbach Wauchope | Eastern Australia Time | -08:00 |
| Kelsterbach Waterford | Eastern Australia Time | -08:00 |
| Kelsterbach Waterford Township | Eastern Time | 06:00 |
| Kelsterbach Watertown | Eastern Time | 06:00 |
| Kelsterbach Waterloo | United Kingdom Time | 01:00 |