| Welch Kemah | Central Time | 01:00 |
| Welch Keeranur | India Standard Time | -10:30 |
| Welch Kebili | West Africa Time | -06:00 |
| Welch Kelibia | Central European Time | -06:00 |
| Welch Kelmarsh | United Kingdom Time | -05:00 |
| Welch Kelantan | Western Indonesia Time | -12:00 |
| Welch Kelawade | India Standard Time | -10:30 |
| Welch Keilor East | Eastern Australia Time | -16:00 |
| Welch Keith | United Kingdom Time | -05:00 |
| Welch Kennebunkport | Eastern Time | 00:00 |
| Welch Kenmore | Eastern Australia Time | -15:00 |
| Welch Kenmare | Ireland Time | -05:00 |
| Welch Kensington | Eastern Australia Time | -16:00 |
| Welch Kennett | Central Time | 01:00 |
| Welch Kenton | Eastern Time | 00:00 |
| Welch Keralassery | India Standard Time | -10:30 |
| Welch Kérou | West Africa Time | -06:00 |
| Welch Kernen | Central European Time | -06:00 |
| Welch Kerpen | Central European Time | -06:00 |
| Welch Keswick | United Kingdom Time | -05:00 |
| Welch Kesare | India Standard Time | -10:30 |
| Welch Ketchikan | Alaska Time | 04:00 |
| Welch Kettleman City | Pacific Time | 03:00 |
| Welch Kewanee | Central Time | 01:00 |
| Welch Key Biscayne | Eastern Time | 00:00 |
| Welch Key Largo | Eastern Time | 00:00 |
| Welch Kapolei | Hawaii-Aleutian Time | 05:00 |
| Welch Kaprun | Central European Time | -06:00 |
| Welch Kapuskasing | Eastern Time | 00:00 |
| Welch Kannur | India Standard Time | -10:30 |
| Welch Kansas City | Central Time | 01:00 |
| Welch Kapar | Malaysia Time | -13:00 |
| Welch Karumathampatti | India Standard Time | -10:30 |
| Welch Kartal | Turkey Time | -08:00 |
| Welch Karnak | Central Time | 01:00 |
| Welch Karon | Indochina Time | -12:00 |
| Welch Karlsborg | Central European Time | -06:00 |
| Welch Karawara | Western Australia Time | -13:00 |
| Welch Karambakkudi | India Standard Time | -10:30 |
| Welch Kardinya | Western Australia Time | -13:00 |
| Welch Karkkila | Eastern European Time | -07:00 |
| Welch Kathu | Indochina Time | -12:00 |
| Welch Kathikas | Eastern European Time | -07:00 |
| Welch Katlenburg-Lindau | Central European Time | -06:00 |
| Welch Katapady | India Standard Time | -10:30 |
| Welch Kasuya | Japan Time | -14:00 |
| Welch Kasia Bazaar | India Standard Time | -10:30 |
| Welch Kasol | India Standard Time | -10:30 |
| Welch Kashigarh | India Standard Time | -10:30 |
| Welch Kasauli | India Standard Time | -10:30 |