HST to UTC Time Converter
Hawaii Standard Time to Coordinated Universal Time — live converter with a full hour-by-hour table
Right now it is 10:32 in HST (UTC-10:00) and 20:32 in UTC (UTC+00:00). UTC is 10 hours ahead of HST (+10h).
Time now in HST
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Time now in UTC
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HST to UTC conversion table
| HST | UTC | HST | UTC |
|---|---|---|---|
| 00:00 | 10:00 | 12:00 | 22:00 |
| 01:00 | 11:00 | 13:00 | 23:00 |
| 02:00 | 12:00 | 14:00 | 00:00 |
| 03:00 | 13:00 | 15:00 | 01:00 |
| 04:00 | 14:00 | 16:00 | 02:00 |
| 05:00 | 15:00 | 17:00 | 03:00 |
| 06:00 | 16:00 | 18:00 | 04:00 |
| 07:00 | 17:00 | 19:00 | 05:00 |
| 08:00 | 18:00 | 20:00 | 06:00 |
| 09:00 | 19:00 | 21:00 | 07:00 |
| 10:00 | 20:00 | 22:00 | 08:00 |
| 11:00 | 21:00 | 23:00 | 09:00 |
Best time to call or meet
Standard business hours, expressed in both zones:
- 9:00–17:00 in HST is 19:00 to 03:00 in UTC
- 9:00–17:00 in UTC is 23:00 to 07:00 in HST
FAQ
What is the time difference between HST and UTC?
UTC is 10 hours ahead of HST. HST is UTC-10:00 and UTC is UTC+00:00.
What is the best time to call from HST to UTC?
9:00 to 17:00 in HST corresponds to 19:00 to 03:00 in UTC. Schedule calls inside the business-hours overlap of both zones.
More about these zones
- Hawaii Standard TimeUTC-10:00
- Coordinated Universal TimeUTC+00:00
- Convert UTC to HST insteadreverse direction
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