| Kittery Wanguri | Central Australia Time | -13:30 |
| Kittery Wamego | Central Time | 01:00 |
| Kittery Wanaka | New Zealand Time | -16:00 |
| Kittery Wandiligong | Eastern Australia Time | -14:00 |
| Kittery Waltenhofen | Central European Time | -06:00 |
| Kittery Walzbachtal | Central European Time | -06:00 |
| Kittery Warburton | Eastern Australia Time | -14:00 |
| Kittery Wareham | Eastern Time | 00:00 |
| Kittery Wappingers Falls | Eastern Time | 00:00 |
| Kittery Warana | Eastern Australia Time | -14:00 |
| Kittery Warner | Eastern Time | 00:00 |
| Kittery Woodinville | Pacific Time | 03:00 |
| Kittery Woodend | Eastern Australia Time | -14:00 |
| Kittery Woodfin | Eastern Time | 00:00 |
| Kittery Woodford | Eastern Australia Time | -14:00 |
| Kittery Wyomissing | Eastern Time | 00:00 |
| Kittery Wyong | Eastern Australia Time | -14:00 |
| Kittery Wynn Vale | Central Australia Time | -13:30 |
| Kittery Wynnewood | Eastern Time | 00:00 |
| Kittery Wynyard | Eastern Australia Time | -14:00 |
| Kittery Wythall | United Kingdom Time | -05:00 |
| Kittery Wytheville | Eastern Time | 00:00 |
| Kittery Xaafuun | East Africa Time | -07:00 |
| Kittery Xàbia | Central European Time | -06:00 |
| Kittery Xalapa | Central Time | 01:00 |
| Kittery Xalapa Enríquez | Central Time | 01:00 |
| Kittery Xalisco | Mexican Pacific Time | 02:00 |
| Kittery Woy Woy | Eastern Australia Time | -14:00 |
| Kittery Wrightsville | Eastern Time | 00:00 |
| Kittery Wrightsville Beach | Eastern Time | 00:00 |
| Kittery Woods Cross | Mountain Time | 02:00 |
| Kittery Worb | Central European Time | -06:00 |
| Kittery Woody Point | Eastern Australia Time | -14:00 |
| Kittery Woolloongabba | Eastern Australia Time | -14:00 |
| Kittery Workum | Central European Time | -06:00 |
| Kittery Worrigee | Eastern Australia Time | -14:00 |
| Kittery Wörrstadt | Central European Time | -06:00 |
| Kittery Xaxim | Brasilia Time | -01:00 |