JST to AEST Time Converter

Convert Japan Standard Time (JST) to Australian Eastern Standard Time (AEST). Both time zones are shown live below; current offset between them is 1 hour ahead.

Tokyo · Japan Standard Time
05:55:28
Monday, May 11, 2026
GMT+9 · UTC+09:00
Sydney · Australian Eastern Standard Time
06:55:28
Monday, May 11, 2026
GMT+10 · UTC+10:00

Convert a specific time

From: JST (Tokyo)
To: AEST (Sydney)
--:--

Daylight Saving status right now

JST (Japan Standard Time)
Observes DST
No
AEST (Australian Eastern Standard Time)
Observes DST
Yes
In DST right now
No
Next spring forward
2026-10-04
Offset shift
UTC+10:00 → UTC+11:00

Heads up: AEST observes DST while JST does not. The 1-hour difference shown above will shift by one hour when AEST starts or ends DST.

When can JST and AEST meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
JST
AEST
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Tokyo (JST). Each row shows the local working-hours state in that zone for the same moment in time.
7 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 09:00–15:00 JST (10:00–16:00 AEST).

Hour-by-hour JST to AEST conversion table

JST time (Tokyo)AEST time (Sydney)Status
00:00 Mon01:00 MonOff-hours both sides
01:00 Mon02:00 MonOff-hours both sides
02:00 Mon03:00 MonOff-hours both sides
03:00 Mon04:00 MonOff-hours both sides
04:00 Mon05:00 MonOff-hours both sides
05:00 Mon06:00 MonOff-hours both sides
06:00 Mon07:00 MonOff-hours both sides
07:00 Mon08:00 MonOff-hours both sides
08:00 Mon09:00 MonAEST working
09:00 Mon10:00 MonBoth at work
10:00 Mon11:00 MonBoth at work
11:00 Mon12:00 MonBoth at work
12:00 Mon13:00 MonBoth at work
13:00 Mon14:00 MonBoth at work
14:00 Mon15:00 MonBoth at work
15:00 Mon16:00 MonBoth at work
16:00 Mon17:00 MonJST working
17:00 Mon18:00 MonOff-hours both sides
18:00 Mon19:00 MonOff-hours both sides
19:00 Mon20:00 MonOff-hours both sides
20:00 Mon21:00 MonOff-hours both sides
21:00 Mon22:00 MonOff-hours both sides
22:00 Mon23:00 MonOff-hours both sides
23:00 Mon00:00 TueOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Japan Standard Time (JST)
IANA identifier
Asia/Tokyo
Current UTC offset
UTC+09:00
Current abbreviation
GMT+9
Major cities in this zone
TokyoOsakaKyotoYokohama
Australian Eastern Standard Time (AEST)
IANA identifier
Australia/Sydney
Current UTC offset
UTC+10:00
Current abbreviation
GMT+10
Major cities in this zone
SydneyMelbourneCanberra

Sun today in Tokyo and Sydney

Tokyo
Sunrise
04:41
Sunset
18:36
Solar noon
11:39
Daylight
13h 55m
Sydney
Sunrise
06:38
Sunset
17:07
Solar noon
11:52
Daylight
10h 29m

Related converters

AEST to JST (reverse)JST to ESTJST to PSTJST to GMTJST to UTCJST to CETEST to AESTPST to AESTGMT to AESTUTC to AESTCET to AEST
Looking for local time? See time in Tokyo or time in Sydney.

Frequently asked questions

What is the time difference between JST and AEST right now?+
AEST (Australian Eastern Standard Time) is currently 1 hour ahead JST (Japan Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does JST or AEST observe daylight saving time?+
JST: does not observe daylight saving time. AEST: observes daylight saving time.
When is the best time to schedule a meeting between JST and AEST?+
The strongest overlap is 09:00–15:00 JST (10:00–16:00 AEST), giving 7 hours when both sides are within standard 9am-5pm working hours.
What time is it in Sydney when it is 12:00 noon in Tokyo?+
When it is 12:00 Mon in Tokyo (JST), it is 13:00 Mon in Sydney (AEST).
Which IANA time zone identifiers are used for JST and AEST?+
JST maps to "Asia/Tokyo" in the IANA database. AEST maps to "Australia/Sydney". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Tokyo ahead of or behind Sydney?+
Whether Tokyo (JST) is ahead of or behind Sydney (AEST) depends on the current UTC offsets. Right now AEST is 1 hour ahead JST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for JST and AEST?+
JST is UTC+09:00 (GMT+9) and AEST is UTC+10:00 (GMT+10). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both JST and AEST?+
Yes. There are 7 hours of overlap during standard 9am-5pm working hours, with the strongest window at 09:00–15:00 JST.