| Casoria Wagrain | Central European Time | 00:00 |
| Casoria Wadakkanchery | India Standard Time | -04:30 |
| Casoria Wacol | Eastern Australia Time | -09:00 |
| Casoria Wabash | Eastern Time | 05:00 |
| Casoria Wadebridge | United Kingdom Time | 01:00 |
| Casoria Woods Cross | Mountain Time | 07:00 |
| Casoria Woodinville | Pacific Time | 08:00 |
| Casoria Walchwil | Central European Time | 00:00 |
| Casoria Woodend | Eastern Australia Time | -10:00 |
| Casoria Woodfin | Eastern Time | 05:00 |
| Casoria Woodford | Eastern Australia Time | -09:00 |
| Casoria Wakefield | Eastern Time | 05:00 |
| Casoria Wakan | Gulf Standard Time | -03:00 |
| Casoria Waite Park | Central Time | 06:00 |
| Casoria Waitomo | New Zealand Time | -12:00 |
| Casoria Waitsfield | Eastern Time | 05:00 |
| Casoria Worrigee | Eastern Australia Time | -10:00 |
| Casoria Wörrstadt | Central European Time | 00:00 |
| Casoria Workum | Central European Time | 00:00 |
| Casoria Woody Point | Eastern Australia Time | -09:00 |
| Casoria Woolloongabba | Eastern Australia Time | -09:00 |
| Casoria Worb | Central European Time | 00:00 |
| Casoria Wrightsville | Eastern Time | 05:00 |
| Casoria Wrightsville Beach | Eastern Time | 05:00 |
| Casoria Woy Woy | Eastern Australia Time | -10:00 |
| Casoria Wynn Vale | Central Australia Time | -09:30 |
| Casoria Wynnewood | Eastern Time | 05:00 |
| Casoria Wynyard | Eastern Australia Time | -10:00 |
| Casoria Wythall | United Kingdom Time | 01:00 |
| Casoria Wytheville | Eastern Time | 05:00 |
| Casoria Xaafuun | East Africa Time | -02:00 |
| Casoria Xàbia | Central European Time | 00:00 |
| Casoria Wyomissing | Eastern Time | 05:00 |
| Casoria Wyong | Eastern Australia Time | -10:00 |
| Casoria Xalapa | Central Time | 07:00 |
| Casoria Xalapa Enríquez | Central Time | 07:00 |
| Casoria Xalisco | Mexican Pacific Time | 08:00 |
| Casoria Xaxim | Brasilia Time | 04:00 |