| Belfast Kota Marudu | Malaysia Time | -07:00 |
| Belfast Zwingenberg | Central European Time | -01:00 |
| Belfast Kota Bharu | Malaysia Time | -07:00 |
| Belfast Kotara | Eastern Australia Time | -09:00 |
| Belfast Kothav | India Standard Time | -04:30 |
| Belfast Kottiyam | India Standard Time | -04:30 |
| Belfast Kottarakkara | India Standard Time | -04:30 |
| Belfast Koto | Japan Time | -08:00 |
| Belfast Kotobi | Greenwich Mean Time | 01:00 |
| Belfast Kotor | Central European Time | -01:00 |
| Belfast Kotor Varoš | Central European Time | -01:00 |
| Belfast Kovalam | India Standard Time | -04:30 |
| Belfast Keeranur | India Standard Time | -04:30 |
| Belfast Keilor East | Eastern Australia Time | -09:00 |
| Belfast Keith | United Kingdom Time | 00:00 |
| Belfast Kelantan | Western Indonesia Time | -06:00 |
| Belfast Kelawade | India Standard Time | -04:30 |
| Belfast Kelshi | India Standard Time | -04:30 |
| Belfast Kelso | Eastern Australia Time | -09:00 |
| Belfast Kelso | United Kingdom Time | 00:00 |
| Belfast Kelsterbach | Central European Time | -01:00 |
| Belfast Kelston | United Kingdom Time | 00:00 |
| Belfast Kelvin Grove | Eastern Australia Time | -09:00 |
| Belfast Kemah | Central Time | 06:00 |
| Belfast Kazhakkoottam | India Standard Time | -04:30 |
| Belfast Kazhipathur | India Standard Time | -04:30 |
| Belfast Kebili | West Africa Time | 00:00 |
| Belfast København | Central European Time | -01:00 |
| Belfast København | Central European Time | -01:00 |
| Belfast København | Central European Time | -01:00 |
| Belfast København | Central European Time | -01:00 |
| Belfast Keaau | Hawaii-Aleutian Time | 11:00 |
| Belfast Jinzhou | China Time | -07:00 |
| Belfast Jhikli Ambwari | India Standard Time | -04:30 |
| Belfast Jim Thorpe | Eastern Time | 05:00 |
| Belfast Jinan | China Time | -07:00 |
| Belfast Jindalee | Eastern Australia Time | -09:00 |
| Belfast Jindivick | Eastern Australia Time | -09:00 |