| Islington Jim Thorpe | Eastern Time | 14:00 |
| Islington Jinan | China Time | 02:00 |
| Islington Kemptville | Eastern Time | 14:00 |
| Islington Kengalkempohalli | India Standard Time | 04:30 |
| Islington Kemberg | Central European Time | 08:00 |
| Islington Kelmarsh | United Kingdom Time | 09:00 |
| Islington Keeranur | India Standard Time | 04:30 |
| Islington Kelibia | Central European Time | 09:00 |
| Islington Keilor East | Eastern Australia Time | 00:00 |
| Islington Keith | United Kingdom Time | 09:00 |
| Islington Kelantan | Western Indonesia Time | 03:00 |
| Islington Kelawade | India Standard Time | 04:30 |
| Islington Kelshi | India Standard Time | 04:30 |
| Islington Kelso | Eastern Australia Time | 00:00 |
| Islington Kelso | United Kingdom Time | 09:00 |
| Islington Kelsterbach | Central European Time | 08:00 |
| Islington Kelston | United Kingdom Time | 09:00 |
| Islington Kelvin Grove | Eastern Australia Time | 00:00 |
| Islington Kemah | Central Time | 15:00 |
| Islington Kennebunkport | Eastern Time | 14:00 |
| Islington Kennett | Central Time | 15:00 |
| Islington Kenmore | Eastern Australia Time | 00:00 |
| Islington Kenmare | Ireland Time | 09:00 |
| Islington Kenton | Eastern Time | 14:00 |
| Islington Kensington | Eastern Australia Time | 00:00 |
| Islington Kota Bharu | Malaysia Time | 02:00 |
| Islington Kota Belud | Malaysia Time | 02:00 |
| Islington Keralassery | India Standard Time | 04:30 |
| Islington Kotara | Eastern Australia Time | 00:00 |
| Islington Kota Kinabalu | Malaysia Time | 02:00 |
| Islington Kota Marudu | Malaysia Time | 02:00 |
| Islington Kothav | India Standard Time | 04:30 |
| Islington Kottiyam | India Standard Time | 04:30 |
| Islington Kottarakkara | India Standard Time | 04:30 |
| Islington Koto | Japan Time | 01:00 |
| Islington Kotobi | Greenwich Mean Time | 10:00 |
| Islington Kotor | Central European Time | 08:00 |
| Islington Kotor Varoš | Central European Time | 08:00 |