| Columbus Takengon | Western Indonesia Time | -12:00 |
| Columbus Ashprington | United Kingdom Time | -05:00 |
| Columbus Tahoe City | Pacific Time | 03:00 |
| Columbus Applecross | Western Australia Time | -13:00 |
| Columbus Taizhou | China Time | -13:00 |
| Columbus Appenzell District | Central European Time | -06:00 |
| Columbus Taipa | China Time | -13:00 |
| Columbus Apple Springs | Central Time | 01:00 |
| Columbus Taito | Japan Time | -14:00 |
| Columbus Apollo Beach | Eastern Time | 00:00 |
| Columbus Taitō-ku | Japan Time | -14:00 |
| Columbus Atatürk Mahallesi | Turkey Time | -08:00 |
| Columbus Athol | New Zealand Time | -18:00 |
| Columbus Athy | Ireland Time | -05:00 |
| Columbus Badamanavarthekaval | India Standard Time | -10:30 |
| Columbus Atlantic Beach | Eastern Time | 00:00 |
| Columbus Badolato Marina | Central European Time | -06:00 |
| Columbus Baden bei Wien | Central European Time | -06:00 |
| Columbus Badia Polesine | Central European Time | -06:00 |
| Columbus Badia Tedalda | Central European Time | -06:00 |
| Columbus Bahariya Oasis | Eastern European Time | -07:00 |
| Columbus Bahour | India Standard Time | -10:30 |
| Columbus Baga | India Standard Time | -10:30 |
| Columbus Bagà | Central European Time | -06:00 |
| Columbus Baraboo | Central Time | 01:00 |
| Columbus Barabanki | India Standard Time | -10:30 |
| Columbus Bar Harbor | Eastern Time | 00:00 |
| Columbus Bapas | India Standard Time | -10:30 |
| Columbus Bäretswil | Central European Time | -06:00 |
| Columbus Bardez | India Standard Time | -10:30 |
| Columbus Bardolino | Central European Time | -06:00 |
| Columbus Bardonia | Eastern Time | 00:00 |
| Columbus Barcelona | Venezuela Time | -01:00 |
| Columbus Bardauni | India Standard Time | -10:30 |
| Columbus Barboursville | Eastern Time | 00:00 |
| Columbus Barbiano | Central European Time | -06:00 |
| Columbus Barbizon | Central European Time | -06:00 |
| Columbus Barberino Val D'elsa | Central European Time | -06:00 |