| Grasmere Karon | Indochina Time | -06:00 |
| Grasmere Karnak | Central Time | 06:00 |
| Grasmere Karlsborg | Central European Time | -01:00 |
| Grasmere Jarmen | Central European Time | -01:00 |
| Grasmere Järfälla | Central European Time | -01:00 |
| Grasmere Karkkila | Eastern European Time | -02:00 |
| Grasmere Karawara | Western Australia Time | -07:00 |
| Grasmere Kardinya | Western Australia Time | -07:00 |
| Grasmere Köniz | Central European Time | -01:00 |
| Grasmere Kasol | India Standard Time | -04:30 |
| Grasmere Königsleiten | Central European Time | -01:00 |
| Grasmere Konolfingen | Central European Time | -01:00 |
| Grasmere Konnunsuo | Eastern European Time | -02:00 |
| Grasmere Kashigarh | India Standard Time | -04:30 |
| Grasmere Kasia Bazaar | India Standard Time | -04:30 |
| Grasmere Kasauli | India Standard Time | -04:30 |
| Grasmere Koppa | India Standard Time | -04:30 |
| Grasmere Koratty | India Standard Time | -04:30 |
| Grasmere Korčula | Central European Time | -01:00 |
| Grasmere Koshu | Japan Time | -08:00 |
| Grasmere Kosova Hora | Central European Time | -01:00 |
| Grasmere Košice | Central European Time | -01:00 |
| Grasmere Lake Mary | Eastern Time | 05:00 |
| Grasmere Lamar | Mountain Time | 07:00 |
| Grasmere Lalin de Arriba | Central European Time | -01:00 |
| Grasmere Lalinde | Central European Time | -01:00 |
| Grasmere Lampeter | United Kingdom Time | 00:00 |
| Grasmere Lammhult | Central European Time | -01:00 |
| Grasmere Lamoli | Central European Time | -01:00 |
| Grasmere Lambertville | Eastern Time | 05:00 |
| Grasmere Lambton Shores | Eastern Time | 05:00 |
| Grasmere Lakhra | Pakistan Time | -04:00 |
| Grasmere Lakewood Township | Eastern Time | 05:00 |
| Grasmere Lake Park | Eastern Time | 05:00 |
| Grasmere Lake Placid | Eastern Time | 05:00 |
| Grasmere Lakeside | Atlantic Time | 04:00 |
| Grasmere Lakemba | Eastern Australia Time | -09:00 |
| Grasmere Lakeport | Pacific Time | 08:00 |