| Colombo Salanga | India Standard Time | -08:30 |
| Colombo Bergem | Central European Time | -05:00 |
| Colombo Berg | Central European Time | -05:00 |
| Colombo Bensalem | Eastern Time | 01:00 |
| Colombo Bennington | Eastern Time | 01:00 |
| Colombo Benson | Mountain Time | 04:00 |
| Colombo Benxi | China Time | -11:00 |
| Colombo Benton Harbor | Eastern Time | 01:00 |
| Colombo Ban Luang | Indochina Time | -10:00 |
| Colombo Ban Lum | Indochina Time | -10:00 |
| Colombo Ban Tai | Indochina Time | -10:00 |
| Colombo Ban Tai | Indochina Time | -10:00 |
| Colombo Bandar Baru Bangi | Malaysia Time | -11:00 |
| Colombo Bamber Bridge | United Kingdom Time | -04:00 |
| Colombo Balsièges | Central European Time | -05:00 |
| Colombo Balwyn | Eastern Australia Time | -13:00 |
| Colombo Balmain | Eastern Australia Time | -13:00 |
| Colombo Ballydehob | Ireland Time | -04:00 |
| Colombo Ballsbridge | Ireland Time | -04:00 |
| Colombo Ballston Spa | Eastern Time | 01:00 |
| Colombo Ballina | Eastern Australia Time | -13:00 |
| Colombo Ballarat Central | Eastern Australia Time | -13:00 |
| Colombo Arpora | India Standard Time | -08:30 |
| Colombo Arossim | India Standard Time | -08:30 |
| Colombo Arden | Eastern Time | 01:00 |
| Colombo Ardross | Western Australia Time | -11:00 |
| Colombo Ardsley | Eastern Time | 01:00 |
| Colombo Åre | Central European Time | -05:00 |
| Colombo Ariana | Central European Time | -04:00 |
| Colombo Arcugnano | Central European Time | -05:00 |
| Colombo Argenbühl | Central European Time | -05:00 |
| Colombo Argent-sur-Sauldre | Central European Time | -05:00 |
| Colombo Arlesheim | Central European Time | -05:00 |
| Colombo Arklow | Ireland Time | -04:00 |
| Colombo Arkula | India Standard Time | -08:30 |
| Colombo Arncliffe | Eastern Australia Time | -13:00 |
| Colombo Arnedo | Central European Time | -05:00 |
| Colombo Armstrong | Pacific Time | 04:00 |