| Cape Town Winseler | Central European Time | 00:00 |
| Cape Town Winnsboro | Central Time | 07:00 |
| Cape Town Urumqi | China Time | -06:00 |
| Cape Town Urbino | Central European Time | 00:00 |
| Cape Town Ursel | Central European Time | 00:00 |
| Cape Town Urmar Tanda | India Standard Time | -03:30 |
| Cape Town Urizar | Central European Time | 00:00 |
| Cape Town Unterseen | Central European Time | 00:00 |
| Cape Town Unthank | United Kingdom Time | 01:00 |
| Cape Town Upper Coomera | Eastern Australia Time | -08:00 |
| Cape Town Upper Darby | Eastern Time | 06:00 |
| Cape Town Upper Ferntree Gully | Eastern Australia Time | -08:00 |
| Cape Town Upland | Pacific Time | 09:00 |
| Cape Town Urakawa | Japan Time | -07:00 |
| Cape Town Upper Mount Gravatt | Eastern Australia Time | -08:00 |
| Cape Town Upper Moutere | New Zealand Time | -10:00 |
| Cape Town Uppala | India Standard Time | -03:30 |
| Cape Town Uran Islampur | India Standard Time | -03:30 |
| Cape Town Waldkirchen | Central European Time | 00:00 |
| Cape Town Walenstadt | Central European Time | 00:00 |
| Cape Town Üsküdar | Turkey Time | -01:00 |
| Cape Town Wals | Central European Time | 00:00 |
| Cape Town Wallisellen | Central European Time | 00:00 |
| Cape Town Waliv | India Standard Time | -03:30 |
| Cape Town Walled Lake | Eastern Time | 06:00 |
| Cape Town Wamego | Central Time | 07:00 |
| Cape Town Wanaka | New Zealand Time | -10:00 |
| Cape Town Wandiligong | Eastern Australia Time | -08:00 |
| Cape Town Walzbachtal | Central European Time | 00:00 |
| Cape Town Waltenhofen | Central European Time | 00:00 |
| Cape Town Zuidhorn | Central European Time | 00:00 |
| Cape Town Zuidoostbeemster | Central European Time | 00:00 |
| Cape Town Zugliano | Central European Time | 00:00 |
| Cape Town Zoutelande | Central European Time | 00:00 |
| Cape Town Zürs | Central European Time | 00:00 |
| Cape Town Zweisimmen | Central European Time | 00:00 |
| Cape Town Zwiefalten | Central European Time | 00:00 |
| Cape Town Zwingenberg | Central European Time | 00:00 |