Time zone converter

JST to AEST

On Oct 23, 2026, Australian Eastern Time is 2 hours ahead of Japan Standard Time: 9:00 AM JST is 11:00 AM AEDT. The gap changes during the year because of daylight saving time; the dates are below.

Japan Standard Time
--:--
Current time in Japan Standard Time
Australian Eastern Time
--:--
Current time in Australian Eastern Time
Pick a date and time to convert.

AEST vs JST over the next 12 months

PeriodAEST isExample
Oct 23, 2026 to Apr 4, 20272 hours ahead9:00 AM JST = 11:00 AM AEDT
Apr 4, 2027 to Oct 3, 20271 hour ahead9:00 AM JST = 10:00 AM AEST
Oct 3, 2027 onwards2 hours ahead9:00 AM JST = 11:00 AM AEDT

JST to AEST conversion table

Every hour of a weekday around Oct 23, 2026, in both zones.

Japan Standard TimeAustralian Eastern Time
12:00 AM2:00 AM
1:00 AM3:00 AM
2:00 AM4:00 AM
3:00 AM5:00 AM
4:00 AM6:00 AM
5:00 AM7:00 AM
6:00 AM8:00 AM
7:00 AM9:00 AM
8:00 AM10:00 AM
9:00 AM11:00 AM
10:00 AM12:00 PM
11:00 AM1:00 PM
12:00 PM2:00 PM
1:00 PM3:00 PM
2:00 PM4:00 PM
3:00 PM5:00 PM
4:00 PM6:00 PM
5:00 PM7:00 PM
6:00 PM8:00 PM
7:00 PM9:00 PM
8:00 PM10:00 PM
9:00 PM11:00 PM
10:00 PM12:00 AM (next day)
11:00 PM1:00 AM (next day)

Best time for a meeting

Normal 9-to-5 working hours overlap for 6 hours on a weekday: 9:00 AM–3:00 PM JST, which is 11:00 AM–5:00 PM AEDT.

Comparing more than two places? The meeting planner lines up working hours for up to six cities.

Daylight saving time

Australian Eastern Time (AEST/AEDT)

  • Apr 4, 2027: clocks go back 1 hour at 3:00 AM (UTC+11 → UTC+10)
  • Oct 3, 2027: clocks go forward 1 hour at 2:00 AM (UTC+10 → UTC+11)

Where these clocks are used

  • Japan Standard Time (JST): all of Japan. IANA zone Asia/Tokyo.
  • Australian Eastern Time (AEST/AEDT): Sydney, Melbourne, Canberra (Brisbane stays on AEST all year). IANA zone Australia/Sydney.

Questions

What time is it in AEST when it is 9 AM JST?

On Oct 23, 2026, 9:00 AM JST is 11:00 AM AEDT. On other dates the answer can shift by an hour because of daylight saving time; the table of periods on this page gives each one.

How many hours ahead of JST is AEST?

It depends on the date. Oct 23, 2026 to Apr 4, 2027: AEST is 2 hours ahead. Apr 4, 2027 to Oct 3, 2027: AEST is 1 hour ahead. Oct 3, 2027 onwards: AEST is 2 hours ahead.

Do JST and AEST observe daylight saving time?

Japan Standard Time stays on UTC+9 all year. Australian Eastern Time switches to AEDT (UTC+11) in summer and back to AEST (UTC+10) in winter.

What is the best time for a meeting between JST and AEST?

Normal 9-to-5 working hours overlap for 6 hours on a weekday: 9:00 AM–3:00 PM JST, which is 11:00 AM–5:00 PM AEDT.

Scheduling across time zones? Share one Caly booking link and every guest sees your free times in their own zone. Try Caly free

Related conversions

Computed from the IANA time zone database on Oct 23, 2026. Live clocks and the converter use your browser's copy of the same data.