What is AEST in HST?
Hawaii Standard Time is 20 hours behind
Australian Eastern Time is on UTC+10:00 and Hawaii Standard Time is on UTC−10:00 right now. The gap changes during the year — see below.
- Time in Sydney
- 12:14 pm
- Time in Honolulu
- 4:14 pm
- Difference
- −20 h
- Next clock change
- October 3, 2026
Convert a time
HST — Hawaii Standard Time
4:00 pm
Tue, the previous day
When the difference changes
Australian Eastern Time and Hawaii Standard Time do not change their clocks on the same dates, so the gap between them is not the same all year. Most converters show only today’s figure. These are the periods ahead:
- Now – October 3, 2026Hawaii Standard Time is 20 hours behind
- October 3, 2026 – April 3, 2027Hawaii Standard Time is 21 hours behind
- April 3, 2027 – October 2, 2027Hawaii Standard Time is 20 hours behind
- October 2, 2027 – onwardsHawaii Standard Time is 21 hours behind
Periods shorter than a day are not listed: both zones change at 2am in their own local time, so there are a few hours on each transition date when the gap is briefly something else.
Daylight saving
Australian Eastern Time
Clocks go forward one hour at 2am local time, becoming AEDT.
Hawaii Standard Time
Hawaii Standard Time stays on HST all year, so its offset from UTC never moves.
AEST to HST conversion table
Every hour of Wednesday, September 23, 2026, converted from Australian Eastern Time to Hawaii Standard Time. 20 of the 24 hours fall on a different calendar day in Honolulu, which is marked.
- 12:00 am AEST
- 4:00 am HST−1 day
- 1:00 am AEST
- 5:00 am HST−1 day
- 2:00 am AEST
- 6:00 am HST−1 day
- 3:00 am AEST
- 7:00 am HST−1 day
- 4:00 am AEST
- 8:00 am HST−1 day
- 5:00 am AEST
- 9:00 am HST−1 day
- 6:00 am AEST
- 10:00 am HST−1 day
- 7:00 am AEST
- 11:00 am HST−1 day
- 8:00 am AEST
- 12:00 pm HST−1 day
- 9:00 am AEST
- 1:00 pm HST−1 day
- 10:00 am AEST
- 2:00 pm HST−1 day
- 11:00 am AEST
- 3:00 pm HST−1 day
- 12:00 pm AEST
- 4:00 pm HST−1 day
- 1:00 pm AEST
- 5:00 pm HST−1 day
- 2:00 pm AEST
- 6:00 pm HST−1 day
- 3:00 pm AEST
- 7:00 pm HST−1 day
- 4:00 pm AEST
- 8:00 pm HST−1 day
- 5:00 pm AEST
- 9:00 pm HST−1 day
- 6:00 pm AEST
- 10:00 pm HST−1 day
- 7:00 pm AEST
- 11:00 pm HST−1 day
- 8:00 pm AEST
- 12:00 am HST
- 9:00 pm AEST
- 1:00 am HST
- 10:00 pm AEST
- 2:00 am HST
- 11:00 pm AEST
- 3:00 am HST
Scheduling between the two
Working hours overlap from 9:00 am to 2:00 pm AEST, which is 1:00 pm to 6:00 pm HST. Anything inside that window falls in the normal working day at both ends.
Australian Eastern Time (AEST) is used in Melbourne, Canberra and Brisbane. Queensland stays on AEST all year while the southern states move to AEDT.
Hawaii Standard Time (HST) is used in all of Hawaii, which does not observe daylight saving