| Tacna Hawkesbury | Eastern Time | 00:00 |
| Tacna Havana | Cuba Time | 00:00 |
| Tacna Havana | Eastern Time | 00:00 |
| Tacna Hausen bei Würzburg | Central European Time | -06:00 |
| Tacna Havelock North | New Zealand Time | -18:00 |
| Tacna Haverfordwest | United Kingdom Time | -05:00 |
| Tacna Havertown | Eastern Time | 00:00 |
| Tacna Jambiani | East Africa Time | -08:00 |
| Tacna Jane | Central Time | 01:00 |
| Tacna Jalhay | Central European Time | -06:00 |
| Tacna Jaljulia | Israel Time | -07:00 |
| Tacna Jalke Bk. | India Standard Time | -10:30 |
| Tacna Jasper | Central Time | 01:00 |
| Tacna Jasin | Malaysia Time | -13:00 |
| Tacna Jarmen | Central European Time | -06:00 |
| Tacna Järfälla | Central European Time | -06:00 |
| Tacna Jefferson | Eastern Time | 00:00 |
| Tacna Jayamkondan | India Standard Time | -10:30 |
| Tacna Jagannathpur | India Standard Time | -10:30 |
| Tacna Jadayampalayam | India Standard Time | -10:30 |
| Tacna Jahra | Arabian Time | -08:00 |
| Tacna Jaigaon | India Standard Time | -10:30 |
| Tacna Jaimalwala Alias Pireana | India Standard Time | -10:30 |
| Tacna Jaggayyapet | India Standard Time | -10:30 |
| Tacna Ivins | Mountain Time | 02:00 |
| Tacna Ittigen | Central European Time | -06:00 |
| Tacna Ivanhoe | Eastern Australia Time | -16:00 |
| Tacna Ixelles | Central European Time | -06:00 |
| Tacna Izumisano | Japan Time | -14:00 |
| Tacna Izurtza | Central European Time | -06:00 |
| Tacna Johns Island | Eastern Time | 00:00 |
| Tacna Jojutla de Juárez | Central Time | 01:00 |
| Tacna Jonesborough | Eastern Time | 00:00 |
| Tacna Jonestown | Central Time | 01:00 |
| Tacna Jonesville | Eastern Time | 00:00 |
| Tacna Joondalup | Western Australia Time | -13:00 |
| Tacna Jordan | Central Time | 01:00 |
| Tacna Jinzhou | China Time | -13:00 |
| Tacna Junagadh district | India Standard Time | -10:30 |
| Tacna Joshua Tree | Pacific Time | 03:00 |
| Tacna Jeleeb Al-Shuyoukh | Arabian Time | -08:00 |
| Tacna Jejuri | India Standard Time | -10:30 |
| Tacna Jenjarom | Malaysia Time | -13:00 |
| Tacna Jenkintown | Eastern Time | 00:00 |
| Tacna Jelutong | Malaysia Time | -13:00 |
| Tacna Jensen Beach | Eastern Time | 00:00 |
| Tacna Jerez | Central European Time | -06:00 |
| Tacna Jerome | Mountain Time | 02:00 |
| Tacna Jericho | Eastern Time | 00:00 |
| Tacna Jersey Shore | Eastern Time | 00:00 |