AEST to JST time conversion
JST is 1 hour behind AEST.
AEST is always UTC+10. Right now most places that use AEST are on AEDT (UTC+11): JST is 2 hours behind AEDT.
Time difference with your location
AEST is 10 hours ahead of UTC. Compare with your local time →
Choose a date and time
Choose the local time in AEST to convert it to JST on that date.
Skipped clock-change times are unavailable; a repeated time uses its first occurrence.
24-hour conversion chart · AEST → JST
This table converts each hour in AEST to JST on 2026-10-22.
- Working hours
- Outside working hours
- Night hours
| AEST | JST | Shared working hours |
|---|---|---|
| 00:0012:00 AM | 23:0011:00 PM -1 day | |
| 01:001:00 AM | 00:0012:00 AM | |
| 02:002:00 AM | 01:001:00 AM | |
| 03:003:00 AM | 02:002:00 AM | |
| 04:004:00 AM | 03:003:00 AM | |
| 05:005:00 AM | 04:004:00 AM | |
| 06:006:00 AM | 05:005:00 AM | |
| 07:007:00 AM | 06:006:00 AM | |
| 08:008:00 AM | 07:007:00 AM | |
| 09:009:00 AM | 08:008:00 AM | ✓ |
| 10:0010:00 AM | 09:009:00 AM | ✓ |
| 11:0011:00 AM | 10:0010:00 AM | ✓ |
| 12:0012:00 PM | 11:0011:00 AM | ✓ |
| 13:001:00 PM | 12:0012:00 PM | ✓ |
| 14:002:00 PM | 13:001:00 PM | ✓ |
| 15:003:00 PM | 14:002:00 PM | ✓ |
| 16:004:00 PM | 15:003:00 PM | ✓ |
| 17:005:00 PM | 16:004:00 PM | ✓ |
| 18:006:00 PM | 17:005:00 PM | |
| 19:007:00 PM | 18:006:00 PM | |
| 20:008:00 PM | 19:007:00 PM | |
| 21:009:00 PM | 20:008:00 PM | |
| 22:0010:00 PM | 21:009:00 PM | |
| 23:0011:00 PM | 22:0010:00 PM |
Quick conversion examples
These examples use AEST (UTC+10) and JST (UTC+9); choosing a date applies the local clock changes.
Conversion formula: JST = AEST − 1h · AEDT − 2h.
| AEST | 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 |
| 12:00 PM AEST | = 11:00 AM JST |
| 3:00 PM AEST | = 2:00 PM JST |
| 5:00 PM AEST | = 4:00 PM JST |
| 6:00 PM AEST | = 5:00 PM JST |
| 8:00 PM AEST | = 7:00 PM JST |
Overlapping meeting hours
The 08:00–18:00 working day in AEST and JST overlaps for 9 hours on 2026-10-22.
- Shared working hours
- 09:00–18:00 AEST · 08:00–17:00 JST
Clock changes on both sides, 2026–2028
AEST and JST have the following local clock changes in 2026–2028; all times in the table are local to that side.
| Year | AEST | JST |
|---|---|---|
| 2026 | · 03:00 → 02:00 · 02:00 → 03:00 | No clock changes; UTC+9 all year. |
| 2027 | · 03:00 → 02:00 · 02:00 → 03:00 | No clock changes; UTC+9 all year. |
| 2028 | · 03:00 → 02:00 · 02:00 → 03:00 | No clock changes; UTC+9 all year. |
At the start of 2026, JST is 2 hours behind AEDT. The difference changes during the following periods.
- From 2026-04-05 02:00 AEST until 2026-10-04 03:00 AEDT, JST is 1 hour behind AEST.
- From 2027-04-04 02:00 AEST until 2027-10-03 03:00 AEDT, JST is 1 hour behind AEST.
- From 2028-04-02 02:00 AEST until 2028-10-01 03:00 AEDT, JST is 1 hour behind AEST.
Frequently asked questions
What time is 9 AM AEST in JST?
9:00 AM AEST = 8:00 AM JST, using UTC+10 and UTC+9. Choose a date above for the seasonal local time.
Does the time difference between AEST and JST change during the year?
Yes. During 2026–2028: JST is 2 hours behind AEST; JST is 1 hour behind AEST. The clock-change table gives the dates for both sides.
How do I tell whether it is day or night in JST?
Read the JST clock above: this guide counts 06:00–18:00 local time as daytime and the rest as nighttime, without using sunrise and sunset.
What is the best time to call between AEST and JST?
The shared 08:00–18:00 working window is 09:00–18:00 AEST / 08:00–17:00 JST, a total of 9 hours.
What is the time difference between AEST and JST now?
Right now, JST is 1 hour behind AEST. Conversion formula: JST = AEST − 1h · AEDT − 2h.