| Tintagel White Lake charter Township | Eastern Time | 05:00 |
| Tintagel Williams | Mountain Time | 08:00 |
| Tintagel Yeniçiftlik | Turkey Time | -02:00 |
| Tintagel Williamsburg | Eastern Time | 05:00 |
| Tintagel Yenifoça | Turkey Time | -02:00 |
| Tintagel Williamstown | Eastern Australia Time | -09:00 |
| Tintagel Yenda | Eastern Australia Time | -09:00 |
| Tintagel Willaston | United Kingdom Time | 00:00 |
| Tintagel Whiteman Air Force Base | Central Time | 06:00 |
| Tintagel Wilkesboro | Eastern Time | 05:00 |
| Tintagel Whitesboro | Eastern Time | 05:00 |
| Tintagel Wildwood | Eastern Time | 05:00 |
| Tintagel Whiteville | Eastern Time | 05:00 |
| Tintagel Wilkau-Haßlau | Central European Time | -01:00 |
| Tintagel Whitewater | Central Time | 06:00 |
| Tintagel Wiesbaden | Central European Time | -01:00 |
| Tintagel Yermo | Pacific Time | 08:00 |
| Tintagel Wieselburg | Central European Time | -01:00 |
| Tintagel Yeroskipou | Eastern European Time | -02:00 |
| Tintagel Wilbraham | Eastern Time | 05:00 |
| Tintagel Wildau | Central European Time | -01:00 |
| Tintagel Wilder | Eastern Time | 05:00 |
| Tintagel Wilderswil | Central European Time | -01:00 |
| Tintagel Wickham | United Kingdom Time | 00:00 |
| Tintagel Wickham Bishops | United Kingdom Time | 00:00 |
| Tintagel Wicklow | Ireland Time | 00:00 |
| Tintagel Widnau | Central European Time | -01:00 |
| Tintagel Yvoir | Central European Time | -01:00 |
| Tintagel Yzeure | Central European Time | -01:00 |
| Tintagel Yunquera de Henares | Central European Time | -01:00 |
| Tintagel Yuo | West Africa Time | 00:00 |
| Tintagel Winchester | Eastern Time | 05:00 |
| Tintagel Windcrest | Central Time | 06:00 |
| Tintagel Windeck | Central European Time | -01:00 |
| Tintagel Winder | Eastern Time | 05:00 |
| Tintagel Windham | Eastern Time | 05:00 |
| Tintagel Zachary | Central Time | 06:00 |
| Tintagel Zahara de los Atunes | Central European Time | -01:00 |