Clockjumper

Timezone conversion

JST to AEST Time — Convert Japan Standard Time to Australian Eastern Standard Time

AEST is currently 1 hour ahead of JST. The gap shifts across the year: around January AEST is 2 hours ahead of JST, and around July it is 1 hour ahead of JST, because one or both zones observe daylight saving.

AEST is currently 1 hour ahead of JST.

JST • JST (UTC+9)
11:32 PM
Thursday, Sep 10
AEST • AEST (UTC+10)
12:32 AM
Friday, Sep 11

Abbreviation disambiguation

On Clockjumper, AEST refers to Australian Eastern Standard Time, UTC+10 — the winter time in New South Wales, Victoria, Tasmania and the ACT. From the first Sunday in October to the first Sunday in April those states move to AEDT (UTC+11). Queensland stays on AEST all year and does not observe daylight saving.

Interactive converter

From

12:00PM

To

Select both cities to see the converted time.

Pick a time to convert
:

Full JST to AEST conversion table

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

Daylight saving and how the gap changes

Around January AEST is 2 hours ahead of JST. Around July it is 1 hour ahead of JST. That swing comes from one or both zones observing daylight saving on different schedules — the converter above always reflects the correct offset for the date you pick.

Frequently asked questions

Is AEST ahead of or behind JST right now?
AEST is currently 1 hour ahead of JST.
What is the current JST to AEST time difference?
Right now the gap is 1 hour — AEST is 1 hour ahead of JST.
Does the JST → AEST offset change during the year?
Yes. Around January AEST is 2 hours ahead of JST; around July it is 1 hour ahead of JST. The converter above always reflects the correct offset for the date you pick.
Does JST observe daylight saving time?
No — Japan Standard Time stays at a fixed UTC offset year-round.
Does AEST observe daylight saving time?
AEST is itself the daylight-saving form. Australian Eastern Standard Time is in force at UTC+10 through the summer months; outside that window the same zone is on AEDT (UTC+11).
What time is 3 AM JST in AEST?
3:00 AM JST is 4:00 AM AEST.
What time is 8 AM JST in AEST?
8:00 AM JST is 9:00 AM AEST.
What time is 9 AM JST in AEST?
9:00 AM JST is 10:00 AM AEST.
What time is 10 AM JST in AEST?
10:00 AM JST is 11:00 AM AEST.
What time is 11 AM JST in AEST?
11:00 AM JST is 12:00 PM AEST.
What time is 12 PM (noon) JST in AEST?
12:00 PM JST is 1:00 PM AEST.
What time is 2 PM JST in AEST?
2:00 PM JST is 3:00 PM AEST.
What time is 3 PM JST in AEST?
3:00 PM JST is 4:00 PM AEST.
What time is 4 PM JST in AEST?
4:00 PM JST is 5:00 PM AEST.
What time is 5 PM JST in AEST?
5:00 PM JST is 6:00 PM AEST.
What time is 9 PM JST in AEST?
9:00 PM JST is 10:00 PM AEST.
What time is 10 PM JST in AEST?
10:00 PM JST is 11:00 PM AEST.
When is the best time to schedule a call between JST and AEST?
The working-hours overlap (09:00–17:00 in both zones) runs roughly 9:00 AM – 4:00 PM JST (≈ 7 hours). The midpoint of that window — 12:30 PM JST, 1:30 PM AEST — is the safest single slot to propose for a live call.
What time zone does JST refer to?
JST refers to Japan Standard Time (IANA: Asia/Tokyo).
What time zone does AEST refer to?
AEST refers to Australian Eastern Standard Time (IANA: Australia/Sydney).
Is AEST on this page the same as other zones that share the letters "AEST"?
On Clockjumper, AEST refers to Australian Eastern Standard Time, UTC+10 — the winter time in New South Wales, Victoria, Tasmania and the ACT. From the first Sunday in October to the first Sunday in April those states move to AEDT (UTC+11). Queensland stays on AEST all year and does not observe daylight saving.

Related conversions

Learn more