| Huánuco Jhikli Ambwari | India Standard Time | -10:30 |
| Huánuco Jessup | Eastern Time | 00:00 |
| Huánuco Jesus Maria | Peru Time | 00:00 |
| Huánuco Jette | Central European Time | -06:00 |
| Huánuco Jettingen-Scheppach | Central European Time | -06:00 |
| Huánuco Jindalee | Eastern Australia Time | -15:00 |
| Huánuco Jindivick | Eastern Australia Time | -16:00 |
| Huánuco Jim Thorpe | Eastern Time | 00:00 |
| Huánuco Jinan | China Time | -13:00 |
| Huánuco Ironton | Eastern Time | 00:00 |
| Huánuco Iruma | Japan Time | -14:00 |
| Huánuco Ireland | United Kingdom Time | -05:00 |
| Huánuco Ipswich | Eastern Time | 00:00 |
| Huánuco Iowa Park | Central Time | 01:00 |
| Huánuco Iphofen | Central European Time | -06:00 |
| Huánuco Inzell | Central European Time | -06:00 |
| Huánuco Inverurie | United Kingdom Time | -05:00 |
| Huánuco Inverleigh | Eastern Australia Time | -16:00 |
| Huánuco Innaloo | Western Australia Time | -13:00 |
| Huánuco Intra | Central European Time | -06:00 |
| Huánuco Ingersoll | Eastern Time | 00:00 |
| Huánuco Ingleburn | Eastern Australia Time | -16:00 |
| Huánuco Inez | Eastern Time | 00:00 |
| Huánuco Inishmore | Ireland Time | -05:00 |
| Huánuco Indapur | India Standard Time | -10:30 |
| Huánuco Indiana | Eastern Time | 00:00 |
| Huánuco Indialantic | Eastern Time | 00:00 |
| Huánuco Indian Harbour Beach | Eastern Time | 00:00 |
| Huánuco Indian Rocks Beach | Eastern Time | 00:00 |
| Huánuco Imboden | Central Time | 01:00 |
| Huánuco Immenstadt | Central European Time | -06:00 |
| Huánuco Incline Village | Pacific Time | 03:00 |
| Huánuco Inala | Eastern Australia Time | -15:00 |
| Huánuco Inari | Eastern European Time | -07:00 |
| Huánuco Ischgl | Central European Time | -06:00 |
| Huánuco Irvine | Pacific Time | 03:00 |
| Huánuco Irvine | United Kingdom Time | -05:00 |
| Huánuco Irving | Central Time | 01:00 |
| Huánuco Ishikawa | Japan Time | -14:00 |
| Huánuco Issigeac | Central European Time | -06:00 |
| Huánuco Islington | Eastern Australia Time | -16:00 |
| Huánuco Islamorada | Eastern Time | 00:00 |
| Huánuco Islamabad | Pakistan Time | -10:00 |
| Huánuco Islandia | Eastern Time | 00:00 |
| Huánuco Isle | Central Time | 01:00 |
| Huánuco Isla Canela | Central European Time | -06:00 |
| Huánuco Isla Mujeres | Eastern Time | 00:00 |
| Huánuco Itabashi | Japan Time | -14:00 |
| Huánuco Itatiaia | Brasilia Time | -02:00 |
| Huánuco Itaunja | India Standard Time | -10:30 |