| Upper Coomera Valle de la Serena | Central European Time | 08:00 |
| Upper Coomera Copacabana | Bolivia Time | 14:00 |
| Upper Coomera Torelló | Central European Time | 08:00 |
| Upper Coomera Coppengrave | Central European Time | 08:00 |
| Upper Coomera Torazo | Central European Time | 08:00 |
| Upper Coomera Copley | Eastern Time | 14:00 |
| Upper Coomera Topanga | Pacific Time | 17:00 |
| Upper Coomera Coquille | Pacific Time | 17:00 |
| Upper Coomera Törökbálint | Central European Time | 08:00 |
| Upper Coomera Tarfaya | Western European Time | 09:00 |
| Upper Coomera Toowong | Eastern Australia Time | 00:00 |
| Upper Coomera Toppenish | Pacific Time | 17:00 |
| Upper Coomera Topsham | United Kingdom Time | 09:00 |
| Upper Coomera Tarascon | Central European Time | 08:00 |
| Upper Coomera Tappahannock | Eastern Time | 14:00 |
| Upper Coomera Tanzania | Greenwich Mean Time | 10:00 |
| Upper Coomera Taormina | Central European Time | 08:00 |
| Upper Coomera Zermatt | Central European Time | 08:00 |
| Upper Coomera Zephyr | Eastern Time | 14:00 |
| Upper Coomera Zephyrhills | Eastern Time | 14:00 |
| Upper Coomera Zeven | Central European Time | 08:00 |
| Upper Coomera Zero Branco | Central European Time | 08:00 |
| Upper Coomera Waverley | Eastern Australia Time | 00:00 |
| Upper Coomera Waupaca | Central Time | 15:00 |
| Upper Coomera Wauchope | Eastern Australia Time | 00:00 |
| Upper Coomera Watertown | Eastern Time | 14:00 |
| Upper Coomera Watson | Eastern Australia Time | 00:00 |
| Upper Coomera Wattwil | Central European Time | 08:00 |
| Upper Coomera Wayne | Eastern Time | 14:00 |
| Upper Coomera Wavre | Central European Time | 08:00 |
| Upper Coomera Waynesville | Eastern Time | 14:00 |
| Upper Coomera Wayville | Central Australia Time | 00:30 |
| Upper Coomera Wayzata | Central Time | 15:00 |
| Upper Coomera Weaverville | Pacific Time | 17:00 |
| Upper Coomera Webbers Falls | Central Time | 15:00 |
| Upper Coomera Webster | Central Time | 15:00 |
| Upper Coomera Zandhoven | Central European Time | 08:00 |
| Upper Coomera Zanzibar Town | East Africa Time | 07:00 |