| Nagercoil Harrison Hot Springs | Pacific Time | 13:30 |
| Nagercoil Harrison | Central Time | 11:30 |
| Nagercoil Harwich | Eastern Time | 10:30 |
| Nagercoil Harrodsburg | Eastern Time | 10:30 |
| Nagercoil Harrow | United Kingdom Time | 05:30 |
| Nagercoil Hartsdale | Eastern Time | 10:30 |
| Nagercoil Hartselle | Central Time | 11:30 |
| Nagercoil Hartshorne | Central Time | 11:30 |
| Nagercoil Hartsville | Eastern Time | 10:30 |
| Nagercoil Hartville | Eastern Time | 10:30 |
| Nagercoil Harfleur | Central European Time | 04:30 |
| Nagercoil Hardys Bay | Eastern Australia Time | -05:30 |
| Nagercoil Harburg | Central European Time | 04:30 |
| Nagercoil Hanwood | Eastern Australia Time | -05:30 |
| Nagercoil Hanumanbari | India Standard Time | 00:00 |
| Nagercoil Happy Valley | Pacific Time | 13:30 |
| Nagercoil Hanover | Eastern Time | 10:30 |
| Nagercoil Hang Dong | Indochina Time | -01:30 |
| Nagercoil Handsworth Wood | United Kingdom Time | 05:30 |
| Nagercoil Handforth | United Kingdom Time | 05:30 |
| Nagercoil Hanamkonda | India Standard Time | 00:00 |
| Nagercoil Hanau | Central European Time | 04:30 |
| Nagercoil Hamilton | Eastern Australia Time | -05:30 |
| Nagercoil Hämeenkyrö | Eastern European Time | 03:30 |
| Nagercoil Hamilton Township | Eastern Time | 10:30 |
| Nagercoil Hammerfest | Central European Time | 04:30 |
| Nagercoil Hammersbach | Central European Time | 04:30 |
| Nagercoil Hampton | Eastern Australia Time | -05:30 |
| Nagercoil Hammonton | Eastern Time | 10:30 |
| Nagercoil Hampi | India Standard Time | 00:00 |
| Nagercoil Hammamet Sud | Central European Time | 04:30 |
| Nagercoil Hammamet | Central European Time | 04:30 |
| Nagercoil Halli | Eastern European Time | 03:30 |
| Nagercoil Hallsville | Central Time | 11:30 |
| Nagercoil Hallam | Eastern Australia Time | -05:30 |
| Nagercoil Halifax | Eastern Time | 10:30 |
| Nagercoil Halton Hills | Eastern Time | 10:30 |
| Nagercoil Hamburg | Central European Time | 04:30 |
| Nagercoil Hadleigh | United Kingdom Time | 05:30 |
| Nagercoil Hagenow | Central European Time | 04:30 |
| Nagercoil Hagenthal-le-Haut | Central European Time | 04:30 |
| Nagercoil Hahndorf | Central Australia Time | -05:00 |
| Nagercoil HaGoshrim | Israel Time | 03:30 |
| Nagercoil Haiku-Pauwela | Hawaii-Aleutian Time | 15:30 |
| Nagercoil Haleiwa | Hawaii-Aleutian Time | 15:30 |
| Nagercoil Hales Corners | Central Time | 11:30 |
| Nagercoil Half Moon Bay | Pacific Time | 13:30 |
| Nagercoil Haldensleben | Central European Time | 04:30 |
| Nagercoil Hakone | Japan Time | -03:30 |
| Nagercoil Hakata Ward | Japan Time | -03:30 |