AEST to Japan
-1hAEST
AESTSOURCEJapan
JSTGreen rows indicate typical business hours (9 AM - 5 PM)
AEST and JST on the World Map
The map below highlights the AEST (Australian Eastern Standard Time) and JST (Japan Standard Time) timezone regions across the globe.
AEST – Australian Eastern Standard Time
UTC+10:00Australian Eastern Standard Time (AEST) covers eastern Australia, 10 hours ahead of UTC.
- •Queensland does not observe daylight saving time, staying on AEST year-round.
- •Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
- •The Australian Securities Exchange (ASX) operates on AEST/AEDT.
- •AEST is 15 hours ahead of EST during winter.
JST – Japan Standard Time
UTC+09:00Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.
- •Japan does not observe daylight saving time.
- •Tokyo is the most populous metropolitan area in the world.
- •The Tokyo Stock Exchange operates from 9:00 AM to 3:00 PM JST.
- •JST is 14 hours ahead of EST and 9 hours ahead of GMT.
Everything You Need to Know About AEST and Japan Time
AEST runs on Australian Eastern Standard Time (AEST) at UTC+10:00. Japan runs on Japan Standard Time (JST) at UTC+09:00. That puts AEST 1 hour behind Japan — a difference of -1h at the current offsets.
In practice, when it is 9:00 AM in AEST it is 8:00 AM in Japan. Midnight in AEST is 11:00 PM in Japan. Neither zone observes daylight saving time, so the offset between them stays constant all year.
AEST to Japan time conversion table
| AEST (AEST) | Japan (JST) | Day |
|---|---|---|
| 12:00 AM | 11:00 PM | previous day |
| 6:00 AM | 5:00 AM | same day |
| 7:00 AM | 6:00 AM | same day |
| 8:00 AM | 7:00 AM | same day |
| 9:00 AM | 8:00 AM | same day |
| 12:00 PM | 11:00 AM | same day |
| 3:00 PM | 2:00 PM | same day |
| 5:00 PM | 4:00 PM | same day |
| 6:00 PM | 5:00 PM | same day |
| 9:00 PM | 8:00 PM | same day |
Why people convert AEST to Japan time
- Scheduling a call from AEST to Japan: a 10:00 AM start in AEST lands at 9:00 AM in Japan, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both AEST and Japan are inside the 9-to-5 working day between 10:00 AM and 5:00 PM AEST time (9:00 AM–4:00 PM JST). That is roughly 7 hours of usable overlap.
- Booking travel or deliveries: tracking Japan local time against AEST keeps pickup windows and arrival estimates honest across the -1h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM AEST" is unambiguous; "3 PM" across a -1h gap is not.
- Block 10:00 AM–5:00 PM AEST as the recurring meeting window if you work primarily from AEST and need Japan colleagues present.
About AEST (Australian Eastern Standard Time)
Australian Eastern Standard Time (AEST) is used in the eastern states of Australia including New South Wales, Victoria, Queensland, Tasmania, and the ACT. During summer (October to April), NSW, VIC, TAS, and ACT switch to Australian Eastern Daylight Time (AEDT, UTC+11:00), while Queensland remains on AEST year-round.
About JST (Japan Standard Time)
Japan Standard Time (JST) is the standard time zone for all of Japan. Japan does not observe daylight saving time. JST is 9 hours ahead of UTC and 14 hours ahead of EST. The Tokyo Stock Exchange, the world's third largest by market capitalization, operates on JST. South Korea uses the same offset (KST) but it is a distinct time zone.
Best time to call between AEST and Japan
Both AEST and Japan sit inside the 9 AM – 5 PM working day between 10:00 AM–5:00 PM AEST, which is 9:00 AM–4:00 PM JST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
AEST and Japan share 7 hours of working-hours overlap (10:00 AM–5:00 PM AEST), so scheduling a live meeting is straightforward.
AEST is 1 hour behind Japan (AEST UTC+10:00 → JST UTC+09:00). The shared working window is 10:00 AM–5:00 PM AEST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
AEST
❄ Currently in Standard Time
Standard: UTC+10:00 · DST: UTC+11:00
Clocks spring forward on Sat, Oct 3, 2026
Japan
Does not observe DST
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between AEST and Japan?
AEST (AEST, UTC+10:00) is 1 hour behind Japan (JST, UTC+09:00). The gap is currently -1h.
How do I convert AEST time to Japan time?
Add -1h to AEST local time. For example, 9:00 AM in AEST is 8:00 AM in Japan.
What time is it in Japan right now?
Japan uses JST at UTC+09:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -1h offset from AEST.
What is the best time to call Japan from AEST?
Call between 10:00 AM and 5:00 PM AEST — that maps to 9:00 AM–4:00 PM JST and keeps both parties inside the working day.
Which is behind, AEST or Japan?
AEST is 1 hour behind Japan. When it is 12:00 PM in AEST it is 11:00 AM in Japan.
Do AEST and Japan use different time zones?
AEST uses AEST at UTC+10:00, while Japan (Japan) uses JST at UTC+09:00. The IANA identifiers are Australia/Sydney and Asia/Tokyo.
Does daylight saving time affect the AEST–Japan difference?
Neither zone observes daylight saving time, so the -1h offset between AEST and Japan is fixed all year.
Which other cities share AEST's time zone?
AEST also covers Sydney, Melbourne, Brisbane, Canberra, Hobart, Gold Coast.
Which countries use AEST, AEST's zone?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Is there a day difference between AEST and Japan?
Not normally. The -1h gap only pushes the date over the previous day.
What is the time difference between AEST and Japan?
Japan is -1h from AEST.
What timezone is AEST in?
AEST operates on its local timezone.
What timezone is Japan in?
Japan operates on its local timezone.
Which countries use AEST (Australian Eastern Standard Time)?
AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.
Does AEST observe daylight saving time?
Yes, AEST switches to AEDT during summer months.
What are some interesting facts about AEST?
Queensland does not observe daylight saving time, staying on AEST year-round. Sydney and Melbourne switch to AEDT (UTC+11:00) in summer.
Which cities are in the JST timezone?
Major cities in the JST timezone include Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Kyoto, Kobe, Fukuoka.
What is the UTC offset for JST?
Japan Standard Time (JST) is at UTC+09:00.
What should I know about the JST timezone?
Japan does not observe daylight saving time. Tokyo is the most populous metropolitan area in the world.
When is it midnight in AEST, what time is it in Japan?
When it is 12:00 AM (midnight) in AEST (AEST), it is -1h later in Japan (JST).
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See every conversion from AEST →·See every conversion from Japan →