| Brecon Saint-Aunès | Central European Time | -01:00 |
| Brecon Saint John | Central Time | 06:00 |
| Brecon Saint Ann | Central Time | 06:00 |
| Brecon Saint-Hubert | Central European Time | -01:00 |
| Brecon Saint Anthony | Central Time | 06:00 |
| Brecon Xuzhou | China Time | -07:00 |
| Brecon Saint Anton am Arlberg | Central European Time | -01:00 |
| Brecon Xuchang | China Time | -07:00 |
| Brecon Sagres | Western European Time | 00:00 |
| Brecon Yaliyuru | India Standard Time | -04:30 |
| Brecon Sahibzada Ajit Singh Nagar | India Standard Time | -04:30 |
| Brecon Yallabatharra | Western Australia Time | -07:00 |
| Brecon Saidia | Western European Time | 00:00 |
| Brecon Yallambie | Eastern Australia Time | -09:00 |
| Brecon Sai Thai | Indochina Time | -06:00 |
| Brecon Yunquera de Henares | Central European Time | -01:00 |
| Brecon Yuo | West Africa Time | 00:00 |
| Brecon Yvoir | Central European Time | -01:00 |
| Brecon Zahara de los Atunes | Central European Time | -01:00 |
| Brecon Zachary | Central Time | 06:00 |
| Brecon Yzeure | Central European Time | -01:00 |
| Brecon White City | Pacific Time | 08:00 |
| Brecon White Hall | Central Time | 06:00 |
| Brecon White Lake charter Township | Eastern Time | 05:00 |
| Brecon Whitby | United Kingdom Time | 00:00 |
| Brecon Whitby | Eastern Time | 05:00 |
| Brecon Whitchurch | United Kingdom Time | 00:00 |
| Brecon Wheaton-Glenmont | Eastern Time | 05:00 |
| Brecon Wexford | Ireland Time | 00:00 |
| Brecon Wexford | Eastern Time | 05:00 |
| Brecon Whalley | United Kingdom Time | 00:00 |
| Brecon Whanganui | New Zealand Time | -11:00 |
| Brecon Wheatley | Central Time | 06:00 |
| Brecon Whitefish | Mountain Time | 07:00 |
| Brecon Whiteman Air Force Base | Central Time | 06:00 |
| Brecon Whitesboro | Eastern Time | 05:00 |
| Brecon Whiteville | Eastern Time | 05:00 |
| Brecon Whitewater | Central Time | 06:00 |