| Abbreviation | Name | UTC Offset | Time | Major City |
|---|---|---|---|---|
| TOT | Tonga Standard Time | +13:00 | Nuku'alofa |
| Name | Major City | City Time |
|---|---|---|
| Haʻapai | Pangai | 1:58 AM Sat |
| Vavaʻu | Neiafu | 1:58 AM Sat |
| Vahe Kolofo'ou | Nuku'alofa | 1:58 AM Sat |
| Vahe Kolomotu'a | Tofoa | 1:58 AM Sat |
| Vahe Nukunuku | Houma | 1:58 AM Sat |
| Vahe Vaini | Vainī | 1:58 AM Sat |
| Vahe Lapaha | Lapaha | 1:58 AM Sat |
| Vahe Tatakamotonga | Tatakamotonga | 1:58 AM Sat |