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Convert Hawaii Standard Time (HST) to Tonga Summer Time (TOST, UTC+14) with our free time zone converter. Features real-time conversion and meeting planner for time zone conversion. Accurate, fast, and easy to use on all devices.
Tonga Summer Time is 24 hours ahead of Hawaii Standard Time
Complete hourly conversion for Hawaii Standard Time to Tonga Summer Time
| Hawaii Standard Time | Tonga Summer Time | 24-Hour HST | 24-Hour TOST |
|---|---|---|---|
| 12:00 AM | 12:00 AM (next day) | 00:00 | 00:00 |
| 1:00 AM | 1:00 AM (next day) | 01:00 | 01:00 |
| 2:00 AM | 2:00 AM (next day) | 02:00 | 02:00 |
| 3:00 AM | 3:00 AM (next day) | 03:00 | 03:00 |
| 4:00 AM | 4:00 AM (next day) | 04:00 | 04:00 |
| 5:00 AM | 5:00 AM (next day) | 05:00 | 05:00 |
| 6:00 AM | 6:00 AM (next day) | 06:00 | 06:00 |
| 7:00 AM | 7:00 AM (next day) | 07:00 | 07:00 |
| 8:00 AM | 8:00 AM (next day) | 08:00 | 08:00 |
| 9:00 AM | 9:00 AM (next day) | 09:00 | 09:00 |
| 10:00 AM | 10:00 AM (next day) | 10:00 | 10:00 |
| 11:00 AM | 11:00 AM (next day) | 11:00 | 11:00 |
| 12:00 PM | 12:00 PM (next day) | 12:00 | 12:00 |
| 1:00 PM | 1:00 PM (next day) | 13:00 | 13:00 |
| 2:00 PM | 2:00 PM (next day) | 14:00 | 14:00 |
| 3:00 PM | 3:00 PM (next day) | 15:00 | 15:00 |
| 4:00 PM | 4:00 PM (next day) | 16:00 | 16:00 |
| 5:00 PM | 5:00 PM (next day) | 17:00 | 17:00 |
| 6:00 PM | 6:00 PM (next day) | 18:00 | 18:00 |
| 7:00 PM | 7:00 PM (next day) | 19:00 | 19:00 |
| 8:00 PM | 8:00 PM (next day) | 20:00 | 20:00 |
| 9:00 PM | 9:00 PM (next day) | 21:00 | 21:00 |
| 10:00 PM | 10:00 PM (next day) | 22:00 | 22:00 |
| 11:00 PM | 11:00 PM (next day) | 23:00 | 23:00 |
Optimal hours for calls between HST and TOST
Based on standard business hours (9:00 AM - 6:00 PM) in each time zone
Technical information for both time zones
Source timezone
Target timezone
