| Mumbai Jhikli Ambwari | India Standard Time | 00:00 |
| Mumbai Jessup | Eastern Time | 10:30 |
| Mumbai Jesus Maria | Peru Time | 10:30 |
| Mumbai Jette | Central European Time | 04:30 |
| Mumbai Jettingen-Scheppach | Central European Time | 04:30 |
| Mumbai Jindalee | Eastern Australia Time | -04:30 |
| Mumbai Jindivick | Eastern Australia Time | -05:30 |
| Mumbai Jim Thorpe | Eastern Time | 10:30 |
| Mumbai Jinan | China Time | -02:30 |
| Mumbai Ironton | Eastern Time | 10:30 |
| Mumbai Iruma | Japan Time | -03:30 |
| Mumbai Ireland | United Kingdom Time | 05:30 |
| Mumbai Ipswich | Eastern Time | 10:30 |
| Mumbai Iowa Park | Central Time | 11:30 |
| Mumbai Iphofen | Central European Time | 04:30 |
| Mumbai Inzell | Central European Time | 04:30 |
| Mumbai Inverurie | United Kingdom Time | 05:30 |
| Mumbai Inverleigh | Eastern Australia Time | -05:30 |
| Mumbai Innaloo | Western Australia Time | -02:30 |
| Mumbai Intra | Central European Time | 04:30 |
| Mumbai Ingersoll | Eastern Time | 10:30 |
| Mumbai Ingleburn | Eastern Australia Time | -05:30 |
| Mumbai Inez | Eastern Time | 10:30 |
| Mumbai Inishmore | Ireland Time | 05:30 |
| Mumbai Indapur | India Standard Time | 00:00 |
| Mumbai Indiana | Eastern Time | 10:30 |
| Mumbai Indialantic | Eastern Time | 10:30 |
| Mumbai Indian Harbour Beach | Eastern Time | 10:30 |
| Mumbai Indian Rocks Beach | Eastern Time | 10:30 |
| Mumbai Imboden | Central Time | 11:30 |
| Mumbai Immenstadt | Central European Time | 04:30 |
| Mumbai Incline Village | Pacific Time | 13:30 |
| Mumbai Inala | Eastern Australia Time | -04:30 |
| Mumbai Inari | Eastern European Time | 03:30 |
| Mumbai Ischgl | Central European Time | 04:30 |
| Mumbai Irvine | Pacific Time | 13:30 |
| Mumbai Irvine | United Kingdom Time | 05:30 |
| Mumbai Irving | Central Time | 11:30 |
| Mumbai Ishikawa | Japan Time | -03:30 |
| Mumbai Issigeac | Central European Time | 04:30 |
| Mumbai Islington | Eastern Australia Time | -05:30 |
| Mumbai Islamorada | Eastern Time | 10:30 |
| Mumbai Islamabad | Pakistan Time | 00:30 |
| Mumbai Islandia | Eastern Time | 10:30 |
| Mumbai Isle | Central Time | 11:30 |
| Mumbai Isla Canela | Central European Time | 04:30 |
| Mumbai Isla Mujeres | Eastern Time | 10:30 |
| Mumbai Itabashi | Japan Time | -03:30 |
| Mumbai Itatiaia | Brasilia Time | 08:30 |
| Mumbai Itaunja | India Standard Time | 00:00 |