| Port-au-Prince Taipa | China Time | -12:00 |
| Port-au-Prince Taito | Japan Time | -13:00 |
| Port-au-Prince Taitō-ku | Japan Time | -13:00 |
| Port-au-Prince Taizhou | China Time | -12:00 |
| Port-au-Prince Thibodaux | Central Time | 01:00 |
| Port-au-Prince Thirupathi | India Standard Time | -09:30 |
| Port-au-Prince Thị xã Phú Thọ | Indochina Time | -11:00 |
| Port-au-Prince Thirroul | Eastern Australia Time | -15:00 |
| Port-au-Prince Thornbury | United Kingdom Time | -05:00 |
| Port-au-Prince Thornleigh | Eastern Australia Time | -15:00 |
| Port-au-Prince Thoothukudi | India Standard Time | -09:30 |
| Port-au-Prince Thoppur | India Standard Time | -09:30 |
| Port-au-Prince Thorley | United Kingdom Time | -05:00 |
| Port-au-Prince Thodupuzha | India Standard Time | -09:30 |
| Port-au-Prince Thiruverumbur | India Standard Time | -09:30 |
| Port-au-Prince Takengon | Western Indonesia Time | -11:00 |
| Port-au-Prince Wynn Vale | Central Australia Time | -14:30 |
| Port-au-Prince Wynnewood | Eastern Time | 00:00 |
| Port-au-Prince Wynyard | Eastern Australia Time | -15:00 |
| Port-au-Prince Wythall | United Kingdom Time | -05:00 |
| Port-au-Prince Wytheville | Eastern Time | 00:00 |
| Port-au-Prince Xaafuun | East Africa Time | -07:00 |
| Port-au-Prince Xàbia | Central European Time | -06:00 |
| Port-au-Prince Wyomissing | Eastern Time | 00:00 |
| Port-au-Prince Wyong | Eastern Australia Time | -15:00 |
| Port-au-Prince Xaxim | Brasilia Time | -01:00 |
| Port-au-Prince Xalapa | Central Time | 02:00 |
| Port-au-Prince Xalapa Enríquez | Central Time | 02:00 |
| Port-au-Prince Xalisco | Mexican Pacific Time | 03:00 |
| Port-au-Prince Woy Woy | Eastern Australia Time | -15:00 |
| Port-au-Prince Wrightsville | Eastern Time | 00:00 |
| Port-au-Prince Wrightsville Beach | Eastern Time | 00:00 |
| Port-au-Prince Workum | Central European Time | -06:00 |
| Port-au-Prince Worrigee | Eastern Australia Time | -15:00 |
| Port-au-Prince Wörrstadt | Central European Time | -06:00 |
| Port-au-Prince Worb | Central European Time | -06:00 |
| Port-au-Prince Woody Point | Eastern Australia Time | -14:00 |
| Port-au-Prince Woolloongabba | Eastern Australia Time | -14:00 |