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