What is AEST in JST?
Japan Standard Time is 1 hour behind
Australian Eastern Time is on UTC+10:00 and Japan Standard Time is on UTC+9:00 right now. The gap changes during the year — see below.
- Time in Sydney
- 12:14 pm
- Time in Tokyo
- 11:14 am
- Difference
- −1 h
- Next clock change
- October 3, 2026
Convert a time
JST — Japan Standard Time
11:00 am
Wed
When the difference changes
Australian Eastern Time and Japan 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, 2026Japan Standard Time is 1 hour behind
- October 3, 2026 – April 3, 2027Japan Standard Time is 2 hours behind
- April 3, 2027 – October 2, 2027Japan Standard Time is 1 hour behind
- October 2, 2027 – onwardsJapan Standard Time is 2 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.
Japan Standard Time
Japan Standard Time stays on JST all year, so its offset from UTC never moves.
AEST to JST conversion table
Every hour of Wednesday, September 23, 2026, converted from Australian Eastern Time to Japan Standard Time. 1 of the 24 hours fall on a different calendar day in Tokyo, which is marked.
- 12:00 am AEST
- 11:00 pm JST−1 day
- 1:00 am AEST
- 12:00 am JST
- 2:00 am AEST
- 1:00 am JST
- 3:00 am AEST
- 2:00 am JST
- 4:00 am AEST
- 3:00 am JST
- 5:00 am AEST
- 4:00 am JST
- 6:00 am AEST
- 5:00 am JST
- 7:00 am AEST
- 6:00 am JST
- 8:00 am AEST
- 7:00 am JST
- 9:00 am AEST
- 8:00 am JST
- 10:00 am AEST
- 9:00 am JST
- 11:00 am AEST
- 10:00 am JST
- 12:00 pm AEST
- 11:00 am JST
- 1:00 pm AEST
- 12:00 pm JST
- 2:00 pm AEST
- 1:00 pm JST
- 3:00 pm AEST
- 2:00 pm JST
- 4:00 pm AEST
- 3:00 pm JST
- 5:00 pm AEST
- 4:00 pm JST
- 6:00 pm AEST
- 5:00 pm JST
- 7:00 pm AEST
- 6:00 pm JST
- 8:00 pm AEST
- 7:00 pm JST
- 9:00 pm AEST
- 8:00 pm JST
- 10:00 pm AEST
- 9:00 pm JST
- 11:00 pm AEST
- 10:00 pm JST
Scheduling between the two
Working hours overlap from 10:00 am to 6:00 pm AEST, which is 9:00 am to 5:00 pm JST. 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.