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JST to AET time converter
Sydney is 2 hours ahead of Japan for 183 days of 2026, and 1 hours ahead of for the other 182 days, because daylight saving changes the gap.
JST to AET conversion table
Local time in Japan and the matching time in Sydney on two reference dates, one in winter and one in summer for the northern hemisphere.
| Japan (JST) | Sydney on 15 January | Sydney on 15 July |
|---|---|---|
| 08:00 | 10:00 | 09:00 |
| 09:00 | 11:00 | 10:00 |
| 10:00 | 12:00 | 11:00 |
| 12:00 | 14:00 | 13:00 |
| 15:00 | 17:00 | 16:00 |
| 17:00 | 19:00 | 18:00 |
| 18:00 | 20:00 | 19:00 |
| 21:00 | 23:00 | 22:00 |
Best meeting times between Japan and Sydney
- January: Inside both working days (09:00-17:00): 09:00-15:00 JST = 11:00-17:00 AET.
- July: Inside both working days (09:00-17:00): 09:00-16:00 JST = 10:00-17:00 AET.
Want to add more people? The meeting planner starts with these two zones and lets you add up to four more.
Daylight saving between JST and AET
- Japan does not change its clocks in 2026.
- Sydney moves its clocks back on 5 April and forward on 4 October in 2026.
- The gap is 2 hours for 183 days and 1 hours for 182 days of 2026.
About the two zones
Japan. Japan Standard Time is UTC+9 all year with no daylight saving.
Sydney. Sydney is on AEST (UTC+10) in winter and AEDT (UTC+11) in summer. Because it is in the southern hemisphere, its summer time runs from October to April, the opposite of Europe and North America.
Frequently asked questions
What time is 9 AM JST in AET?
On 15 January, 09:00 in Japan is 11:00 in Sydney. On 15 July it is 10:00.
What is the time difference between Japan and Sydney?
Sydney is 2 hours ahead of Japan for 183 days of 2026, and 1 hours ahead of for the other 182 days, because daylight saving changes the gap.
Does the time difference between JST and AET change during the year?
Yes. Sydney changes its clocks and Japan does not, so the gap moves between 2 and 1 hours. Always convert with the actual date.
When is the best time for a meeting between Japan and Sydney?
Inside both working days (09:00-17:00): 09:00-15:00 JST = 11:00-17:00 AET. In July: Inside both working days (09:00-17:00): 09:00-16:00 JST = 10:00-17:00 AET.
More conversions
Need the time in a scheduler? Convert a local-time cron schedule to UTC, or see which jobs a clock change affects with the DST collision simulator.