AEST to HST: AEST is 20 hours ahead of HST
Australian Eastern Time is 20 hours ahead of Hawaii Standard Time right now. It is 12:08 pm AEST in Australian Eastern and 4:08 pm HST in Hawaii, which is already the previous day there.
Convert a specific time from AEST to HST
Pick any time and date to convert it both ways. The conversion runs in your browser against the real zone rules, so a date inside a daylight saving period gets that period's offset rather than today's.
What is the time difference between AEST and HST?
Hawaii Standard Time is 20 hours behind Australian Eastern Time. To go from AEST to HST you subtract 20 hours. That gap is not fixed. Across 2026 the distance between these two zones takes 2 different values, from 20 hours to 21 hours, because Australian Eastern moves its clocks and Hawaii does not. This page recomputes it rather than assuming.
AEST to HST conversion table
Every hour of Friday, September 25, 2026 in Australian Eastern, with the matching reading in Hawaii. 20 of the 24 hours land on a different calendar date in Hawaii, which is the part people get wrong when they schedule across this pair.
| AEST | AEST 24h | HST | HST 24h | Date |
|---|---|---|---|---|
| 12:00 am | 00:00 | 4:00 am | 04:00 | the previous day |
| 1:00 am | 01:00 | 5:00 am | 05:00 | the previous day |
| 2:00 am | 02:00 | 6:00 am | 06:00 | the previous day |
| 3:00 am | 03:00 | 7:00 am | 07:00 | the previous day |
| 4:00 am | 04:00 | 8:00 am | 08:00 | the previous day |
| 5:00 am | 05:00 | 9:00 am | 09:00 | the previous day |
| 6:00 am | 06:00 | 10:00 am | 10:00 | the previous day |
| 7:00 am | 07:00 | 11:00 am | 11:00 | the previous day |
| 8:00 am | 08:00 | 12:00 pm | 12:00 | the previous day |
| 9:00 am | 09:00 | 1:00 pm | 13:00 | the previous day |
| 10:00 am | 10:00 | 2:00 pm | 14:00 | the previous day |
| 11:00 am | 11:00 | 3:00 pm | 15:00 | the previous day |
| 12:00 pm | 12:00 | 4:00 pm | 16:00 | the previous day |
| 1:00 pm | 13:00 | 5:00 pm | 17:00 | the previous day |
| 2:00 pm | 14:00 | 6:00 pm | 18:00 | the previous day |
| 3:00 pm | 15:00 | 7:00 pm | 19:00 | the previous day |
| 4:00 pm | 16:00 | 8:00 pm | 20:00 | the previous day |
| 5:00 pm | 17:00 | 9:00 pm | 21:00 | the previous day |
| 6:00 pm | 18:00 | 10:00 pm | 22:00 | the previous day |
| 7:00 pm | 19:00 | 11:00 pm | 23:00 | the previous day |
| 8:00 pm | 20:00 | 12:00 am | 00:00 | same day |
| 9:00 pm | 21:00 | 1:00 am | 01:00 | same day |
| 10:00 pm | 22:00 | 2:00 am | 02:00 | same day |
| 11:00 pm | 23:00 | 3:00 am | 03:00 | same day |
What are the best hours to schedule a call between AEST and HST?
No hour of the standard 9:00 am to 5:00 pm working day falls inside working hours on both sides. Australian Eastern and Hawaii are 20 hours apart, which is too far for an overlap, so somebody has to take a call outside their own working day. The least painful options are below, ranked by how close both sides sit to the middle of the afternoon.
| AEST | HST | Working hours | Note |
|---|---|---|---|
| 9:00 am | 1:00 pm the previous day | both sides | mid morning in Australian Eastern, afternoon in Hawaii |
| 10:00 am | 2:00 pm the previous day | both sides | mid morning in Australian Eastern, afternoon in Hawaii |
| 11:00 am | 3:00 pm the previous day | both sides | mid morning in Australian Eastern, afternoon in Hawaii |
Does daylight saving change AEST to HST?
Australian Eastern Time is currently on AEST and changes next on Sunday, October 4, 2026, when the clock jumps forward from 1:59 am to 3:00 am and the offset moves from UTC+10 to UTC+11.
Hawaii Standard Time does not move its clocks at all, so its UTC-10 offset holds every day of the year.
Because the two sides do not move together, the answer to this conversion changes during the year. For part of the year the gap is 20 hours and for the rest it is 21 hours. The table above is built for today, not for an average day.
Is AEST ahead of or behind HST?
AEST is ahead of HST by 20 hours: when it is 12:00 pm in Australian Eastern, it is 4:00 pm the previous day in Hawaii. One wrinkle worth knowing: AEST and AEDT are two names for the same zone, not two zones. Australian Eastern Time reads AEST in winter and AEDT in summer. When somebody types "aest to hst" they nearly always mean the zone rather than the literal winter offset, so this page resolves AEST to Australia/Sydney and HST to Pacific/Honolulu and applies whichever offset is genuinely in force on the day.
Australian Eastern Time covers Sydney, Melbourne and Canberra, where summer falls in December. Hawaii Standard Time covers Hawaii, which has never moved its clocks. The identifiers behind them are Australia/Sydney and Pacific/Honolulu, which is what any calendar or scheduling system should be storing rather than a fixed number of hours.
Questions
- What is AEST in HST?
- AEST is 20 hours ahead of HST. 9:00 am AEST is 1:00 pm the previous day HST.
- How many hours ahead is HST of AEST?
- HST is 20 hours behind AEST. That varies across the year, between 20 hours and 21 hours.
- What time is it in Hawaii right now?
- 4:08 pm HST on Thursday, September 24, 2026.
- When can Australian Eastern and Hawaii meet during working hours?
- There is no shared working hour. The closest fit is 9:00 am AEST, which is 1:00 pm HST.
- Does this account for daylight saving?
- Yes. Every reading is computed from the IANA database for the actual date, so AEST and HST are the abbreviations genuinely in force today rather than a fixed assumption.
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