| Caloocan Hijrat Al Harah | Arabian Time | 05:00 |
| Caloocan Hikkaduwa | India Standard Time | 02:30 |
| Caloocan Highland Heights | Eastern Time | 12:00 |
| Caloocan Highgate | Western Australia Time | 00:00 |
| Caloocan Hillsville | Eastern Time | 12:00 |
| Caloocan Hilmar | Pacific Time | 15:00 |
| Caloocan Hill City | Mountain Time | 14:00 |
| Caloocan Hillarys | Western Australia Time | 00:00 |
| Caloocan Hima | East Africa Time | 05:00 |
| Caloocan Hillsborough | Eastern Time | 12:00 |
| Caloocan Himmelkron | Central European Time | 06:00 |
| Caloocan Inala | Eastern Australia Time | -02:00 |
| Caloocan Inari | Eastern European Time | 05:00 |
| Caloocan Incline Village | Pacific Time | 15:00 |
| Caloocan Ingersoll | Eastern Time | 12:00 |
| Caloocan Ingleburn | Eastern Australia Time | -02:00 |
| Caloocan Inez | Eastern Time | 12:00 |
| Caloocan Inishmore | Ireland Time | 07:00 |
| Caloocan Indapur | India Standard Time | 02:30 |
| Caloocan Indiana | Eastern Time | 12:00 |
| Caloocan Indialantic | Eastern Time | 12:00 |
| Caloocan Indian Harbour Beach | Eastern Time | 12:00 |
| Caloocan Indian Rocks Beach | Eastern Time | 12:00 |
| Caloocan Kafra | Eastern European Time | 05:00 |
| Caloocan Kagawa-gun | Japan Time | -01:00 |
| Caloocan Kaghan | Pakistan Time | 03:00 |
| Caloocan Kadima Zoran | Israel Time | 05:00 |
| Caloocan Kadapra | India Standard Time | 02:30 |
| Caloocan Kadapa | India Standard Time | 02:30 |
| Caloocan Kadambur | India Standard Time | 02:30 |
| Caloocan Ipswich | Eastern Time | 12:00 |
| Caloocan Iowa Park | Central Time | 13:00 |
| Caloocan Iphofen | Central European Time | 06:00 |
| Caloocan Inzell | Central European Time | 06:00 |
| Caloocan Inverurie | United Kingdom Time | 07:00 |
| Caloocan Inverleigh | Eastern Australia Time | -02:00 |
| Caloocan Innaloo | Western Australia Time | 00:00 |
| Caloocan Intra | Central European Time | 06:00 |