| Quatretondeta Willunga | Central Australia Time | -07:30 |
| Quatretondeta Wilton Manors | Eastern Time | 06:00 |
| Quatretondeta Wiltz | Central European Time | 00:00 |
| Quatretondeta Winchcombe | United Kingdom Time | 01:00 |
| Quatretondeta Williamstown | Eastern Time | 06:00 |
| Quatretondeta Williamsville | Eastern Time | 06:00 |
| Quatretondeta Willaston | United Kingdom Time | 01:00 |
| Quatretondeta Williamstown | Eastern Australia Time | -08:00 |
| Quatretondeta Willoughby | Eastern Australia Time | -08:00 |
| Quatretondeta Willisau | Central European Time | 00:00 |
| Quatretondeta Williston Park | Eastern Time | 06:00 |
| Quatretondeta Willits | Pacific Time | 09:00 |
| Quatretondeta Wilbraham | Eastern Time | 06:00 |
| Quatretondeta Wildau | Central European Time | 00:00 |
| Quatretondeta Wilder | Eastern Time | 06:00 |
| Quatretondeta Wilderswil | Central European Time | 00:00 |
| Quatretondeta Wickham | United Kingdom Time | 01:00 |
| Quatretondeta Wickham Bishops | United Kingdom Time | 01:00 |
| Quatretondeta Wicklow | Ireland Time | 01:00 |
| Quatretondeta Widnau | Central European Time | 00:00 |
| Quatretondeta Williams | Mountain Time | 09:00 |
| Quatretondeta Williamsburg | Eastern Time | 06:00 |
| Quatretondeta Wilkau-Haßlau | Central European Time | 00:00 |
| Quatretondeta Wilkesboro | Eastern Time | 06:00 |
| Quatretondeta Wildwood | Eastern Time | 06:00 |
| Quatretondeta Wiesbaden | Central European Time | 00:00 |
| Quatretondeta Wieselburg | Central European Time | 00:00 |
| Quatretondeta Zillah | Pacific Time | 09:00 |
| Quatretondeta Zikhron Ya'akov | Israel Time | -01:00 |
| Quatretondeta Winchester | Eastern Time | 06:00 |
| Quatretondeta Windcrest | Central Time | 07:00 |
| Quatretondeta Windeck | Central European Time | 00:00 |
| Quatretondeta Winder | Eastern Time | 06:00 |
| Quatretondeta Windham | Eastern Time | 06:00 |
| Quatretondeta Zhongshan | China Time | -06:00 |
| Quatretondeta Zirakpur | India Standard Time | -03:30 |
| Quatretondeta Zofingen | Central European Time | 00:00 |
| Quatretondeta Zollikerberg | Central European Time | 00:00 |