HST to ACST Time Converter
Hawaii Standard Time to Australian Central Standard Time — live converter with a full hour-by-hour table
Right now it is 10:32 in HST (UTC-10:00) and 07:02 in ACST (UTC+10:30). ACST is 20 hours 30 minutes ahead of HST (+20h 30m).
Time now in HST
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Time now in ACST
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HST to ACST conversion table
| HST | ACST | HST | ACST |
|---|---|---|---|
| 00:00 | 20:30 | 12:00 | 08:30 |
| 01:00 | 21:30 | 13:00 | 09:30 |
| 02:00 | 22:30 | 14:00 | 10:30 |
| 03:00 | 23:30 | 15:00 | 11:30 |
| 04:00 | 00:30 | 16:00 | 12:30 |
| 05:00 | 01:30 | 17:00 | 13:30 |
| 06:00 | 02:30 | 18:00 | 14:30 |
| 07:00 | 03:30 | 19:00 | 15:30 |
| 08:00 | 04:30 | 20:00 | 16:30 |
| 09:00 | 05:30 | 21:00 | 17:30 |
| 10:00 | 06:30 | 22:00 | 18:30 |
| 11:00 | 07:30 | 23:00 | 19:30 |
Best time to call or meet
Standard business hours, expressed in both zones:
- 9:00–17:00 in HST is 05:30 to 13:30 in ACST
- 9:00–17:00 in ACST is 12:30 to 20:30 in HST
FAQ
What is the time difference between HST and ACST?
ACST is 20 hours 30 minutes ahead of HST. HST is UTC-10:00 and ACST is UTC+10:30.
What is the best time to call from HST to ACST?
9:00 to 17:00 in HST corresponds to 05:30 to 13:30 in ACST. Schedule calls inside the business-hours overlap of both zones.
More about these zones
- Hawaii Standard TimeUTC-10:00
- Australian Central Standard TimeUTC+10:30
- Convert ACST to HST insteadreverse direction
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