| Mississauga Virginia | Central Time | 01:00 |
| Mississauga Virajpet | India Standard Time | -09:30 |
| Mississauga Virapandi | India Standard Time | -09:30 |
| Mississauga Wasserburg am Inn | Central European Time | -06:00 |
| Mississauga Waterford | Eastern Australia Time | -14:00 |
| Mississauga Waterford Township | Eastern Time | 00:00 |
| Mississauga Wasaga Beach | Eastern Time | 00:00 |
| Mississauga Washington | Eastern Time | 00:00 |
| Mississauga Washington | Eastern Time | 00:00 |
| Mississauga Wasilla | Alaska Time | 04:00 |
| Mississauga Watkins Glen | Eastern Time | 00:00 |
| Mississauga Watkinsville | Eastern Time | 00:00 |
| Mississauga Watertown | Eastern Time | 00:00 |
| Mississauga Waterloo | United Kingdom Time | -05:00 |
| Mississauga Watson | Eastern Australia Time | -14:00 |
| Mississauga Wattwil | Central European Time | -06:00 |
| Mississauga Waverley | Eastern Australia Time | -14:00 |
| Mississauga Waupaca | Central Time | 01:00 |
| Mississauga Wauchope | Eastern Australia Time | -14:00 |
| Mississauga Wayne | Eastern Time | 00:00 |
| Mississauga Wavre | Central European Time | -06:00 |
| Mississauga Waynesville | Eastern Time | 00:00 |
| Mississauga Wayville | Central Australia Time | -13:30 |
| Mississauga Wayzata | Central Time | 01:00 |
| Mississauga Weaverville | Pacific Time | 03:00 |
| Mississauga Webbers Falls | Central Time | 01:00 |
| Mississauga Webster | Central Time | 01:00 |
| Mississauga Woodinville | Pacific Time | 03:00 |
| Mississauga Woodend | Eastern Australia Time | -14:00 |
| Mississauga Woodfin | Eastern Time | 00:00 |
| Mississauga Woodford | Eastern Australia Time | -14:00 |
| Mississauga Woods Cross | Mountain Time | 02:00 |
| Mississauga Worb | Central European Time | -06:00 |
| Mississauga Woody Point | Eastern Australia Time | -14:00 |
| Mississauga Woolloongabba | Eastern Australia Time | -14:00 |
| Mississauga Workum | Central European Time | -06:00 |
| Mississauga Worrigee | Eastern Australia Time | -14:00 |
| Mississauga Wörrstadt | Central European Time | -06:00 |