| Unterseen Lakeport | Pacific Time | 09:00 |
| Unterseen Lakeside | Atlantic Time | 05:00 |
| Unterseen Königsleiten | Central European Time | 00:00 |
| Unterseen Kayathar | India Standard Time | -03:30 |
| Unterseen Kaveripakkam | India Standard Time | -03:30 |
| Unterseen Kawarau Falls | New Zealand Time | -10:00 |
| Unterseen Nakahara Ward | Japan Time | -07:00 |
| Unterseen Kawartha Lakes | Eastern Time | 06:00 |
| Unterseen Kayamkulam | India Standard Time | -03:30 |
| Unterseen Konolfingen | Central European Time | 00:00 |
| Unterseen Köniz | Central European Time | 00:00 |
| Unterseen Konnunsuo | Eastern European Time | -01:00 |
| Unterseen Koppa | India Standard Time | -03:30 |
| Unterseen Koratty | India Standard Time | -03:30 |
| Unterseen Jejuri | India Standard Time | -03:30 |
| Unterseen Jeleeb Al-Shuyoukh | Arabian Time | -01:00 |
| Unterseen Jelutong | Malaysia Time | -06:00 |
| Unterseen Jenjarom | Malaysia Time | -06:00 |
| Unterseen Jensen Beach | Eastern Time | 06:00 |
| Unterseen Jenkintown | Eastern Time | 06:00 |
| Unterseen Jerez | Central European Time | 00:00 |
| Unterseen Jericho | Eastern Time | 06:00 |
| Unterseen Jerome | Mountain Time | 09:00 |
| Unterseen Jersey Shore | Eastern Time | 06:00 |
| Unterseen Jefferson | Eastern Time | 06:00 |
| Unterseen Jayamkondan | India Standard Time | -03:30 |
| Unterseen Kathu | Indochina Time | -05:00 |
| Unterseen Katapady | India Standard Time | -03:30 |
| Unterseen Kathikas | Eastern European Time | -01:00 |
| Unterseen Kasuya | Japan Time | -07:00 |
| Unterseen Jesus Maria | Peru Time | 07:00 |
| Unterseen Jessup | Eastern Time | 06:00 |
| Unterseen Katy | Central Time | 07:00 |
| Unterseen Kaub | Central European Time | 00:00 |
| Unterseen Katwijk aan Zee | Central European Time | 00:00 |
| Unterseen Kaup | India Standard Time | -03:30 |
| Unterseen Katlenburg-Lindau | Central European Time | 00:00 |
| Unterseen Kattankulathur | India Standard Time | -03:30 |