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