| Fort Worth Katy | Central Time | 00:00 |
| Fort Worth Kaub | Central European Time | -07:00 |
| Fort Worth Kaup | India Standard Time | -11:30 |
| Fort Worth Kaveripakkam | India Standard Time | -11:30 |
| Fort Worth Kattankulathur | India Standard Time | -11:30 |
| Fort Worth Katwijk aan Zee | Central European Time | -07:00 |
| Fort Worth Kayathar | India Standard Time | -11:30 |
| Fort Worth Kayamkulam | India Standard Time | -11:30 |
| Fort Worth Nakahara Ward | Japan Time | -15:00 |
| Fort Worth Kawartha Lakes | Eastern Time | -01:00 |
| Fort Worth Kawarau Falls | New Zealand Time | -19:00 |
| Fort Worth Kazhakkoottam | India Standard Time | -11:30 |
| Fort Worth Kazhipathur | India Standard Time | -11:30 |
| Fort Worth København | Central European Time | -07:00 |
| Fort Worth København | Central European Time | -07:00 |
| Fort Worth København | Central European Time | -07:00 |
| Fort Worth København | Central European Time | -07:00 |
| Fort Worth Keaau | Hawaii-Aleutian Time | 04:00 |
| Fort Worth Kafra | Eastern European Time | -08:00 |
| Fort Worth Kadapa | India Standard Time | -11:30 |
| Fort Worth Kadambur | India Standard Time | -11:30 |
| Fort Worth Kadima Zoran | Israel Time | -08:00 |
| Fort Worth Kadapra | India Standard Time | -11:30 |
| Fort Worth Kagawa-gun | Japan Time | -15:00 |
| Fort Worth Kaghan | Pakistan Time | -11:00 |
| Fort Worth Kahuku | Hawaii-Aleutian Time | 04:00 |
| Fort Worth Kallam | India Standard Time | -11:30 |
| Fort Worth Kall | Central European Time | -07:00 |
| Fort Worth Kallista | Eastern Australia Time | -17:00 |
| Fort Worth Kalona | Central Time | 00:00 |
| Fort Worth Kalaburagi | India Standard Time | -11:30 |
| Fort Worth Kakkanad | India Standard Time | -11:30 |
| Fort Worth Kajang | Malaysia Time | -14:00 |
| Fort Worth Kajang | Malaysia Time | -14:00 |
| Fort Worth Kalamazoo Township | Eastern Time | -01:00 |
| Fort Worth Kalady | India Standard Time | -11:30 |
| Fort Worth Kalahastipura | India Standard Time | -11:30 |
| Fort Worth Kalyan | India Standard Time | -11:30 |
| Fort Worth Kamboh Pura Part | India Standard Time | -11:30 |
| Fort Worth Kangaroo Valley | Eastern Australia Time | -17:00 |
| Fort Worth Kankaanpää | Eastern European Time | -08:00 |
| Fort Worth Kangerlussuaq | West Greenland Time | -03:00 |
| Fort Worth Kangkar Pulai | Malaysia Time | -14:00 |
| Fort Worth Kanhangad | India Standard Time | -11:30 |
| Fort Worth Kandersteg | Central European Time | -07:00 |
| Fort Worth Hassi Bahbah | Central European Time | -07:00 |
| Fort Worth Hattargi | India Standard Time | -11:30 |
| Fort Worth Haro | Central European Time | -07:00 |
| Fort Worth Harris Park | Eastern Australia Time | -17:00 |
| Fort Worth Harpers Ferry | Eastern Time | -01:00 |