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Sydney to Japan

-1h

Sydney

AESTSOURCE
Australia · UTC+10:00DST observed
HH12
:
MM00
  
12:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM

Japan

JST
UTC+09:00
HH11
:
MM00
  
11:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM
Sydney
Japan
12:00 AM
11:00 PM-1
2:00 AM
1:00 AM
4:00 AM
3:00 AM
6:00 AM
5:00 AM
8:00 AM
7:00 AM
10:00 AM
9:00 AM
12:00 PM
11:00 AM
2:00 PM
1:00 PM
4:00 PM
3:00 PM
6:00 PM
5:00 PM
8:00 PM
7:00 PM
10:00 PM
9:00 PM

Green 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.

AESTJSTSydneyMelbourneBrisbaneCanberraTokyoOsakaYokohamaNagoya
AEST Zone
→
JST Zone

Explore all world timezones interactively →

AEST – Australian Eastern Standard Time

UTC+10:00

Australian Eastern Standard Time (AEST) covers eastern Australia, 10 hours ahead of UTC.

Countries in AEST
Australia (NSW, VIC, QLD, TAS, ACT)Papua New Guinea
Major Cities in AEST
SydneyMelbourneBrisbaneCanberraHobartGold Coast
Key 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.
  • •The Australian Securities Exchange (ASX) operates on AEST/AEDT.
  • •AEST is 15 hours ahead of EST during winter.
Daylight Saving:Yes – switches to AEDT
Learn more about AEST on Wikipedia

JST – Japan Standard Time

UTC+09:00

Japan Standard Time (JST) is the time zone for Japan, 9 hours ahead of UTC.

Countries in JST
Japan
Major Cities in JST
TokyoOsakaYokohamaNagoyaSapporoKyotoKobeFukuokaHiroshima
Key Facts about JST
  • •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.
Daylight Saving:No – UTC+09:00 year-round
Learn more about JST on Wikipedia

About Sydney

Wikipedia

Sydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.

Population:5.4 million
Metro:5.4 million
Business Hours:9:00 AM - 5:00 PM AEST
Currency:AUD (A$)
Stock Exchange:ASX (Australian Securities Exchange)
Key Landmarks
Sydney Opera HouseSydney Harbour BridgeBondi BeachDarling HarbourRoyal Botanic Garden
Did You Know?

Sydney is one of the first major cities to welcome the New Year.

Learn more about AEST timezone →

Understanding the -1h Gap: Sydney vs Japan

Sydney runs on Australian Eastern Standard Time (AEST) at UTC+10:00. Japan runs on Japan Standard Time (JST) at UTC+09:00. That puts Sydney 1 hour behind Japan — a difference of -1h at the current offsets.

In practice, when it is 9:00 AM in Sydney it is 8:00 AM in Japan. Midnight in Sydney is 11:00 PM in Japan. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Sydney to Japan time conversion table

Sydney (AEST)Japan (JST)Day
12:00 AM11:00 PMprevious day
6:00 AM5:00 AMsame day
7:00 AM6:00 AMsame day
8:00 AM7:00 AMsame day
9:00 AM8:00 AMsame day
12:00 PM11:00 AMsame day
3:00 PM2:00 PMsame day
5:00 PM4:00 PMsame day
6:00 PM5:00 PMsame day
9:00 PM8:00 PMsame day

Why people convert Sydney to Japan time

  • Scheduling a call from Sydney to Japan: a 10:00 AM start in Sydney lands at 9:00 AM in Japan, so you can confirm the slot without doing the arithmetic yourself.
  • Finding shared working hours: both Sydney 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.
  • Coordinating a Sydney-based team with Japan contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
  • 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 Sydney and need Japan colleagues present.
  • Sydney: Clocks spring forward on Sat, Oct 3, 2026. Re-check this page after that date because the offset changes and so does the -1h gap.

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 Sydney and Japan

Both Sydney 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

Sydney and Japan share 7 hours of working-hours overlap (10:00 AM–5:00 PM AEST), so scheduling a live meeting is straightforward.

Sydney 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

Sydney

❄ 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

Frequently Asked Questions

What is the time difference between Sydney and Japan?

Sydney (AEST, UTC+10:00) is 1 hour behind Japan (JST, UTC+09:00). The gap is currently -1h.

How do I convert Sydney time to Japan time?

Add -1h to Sydney local time. For example, 9:00 AM in Sydney 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 Sydney.

What is the best time to call Japan from Sydney?

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, Sydney or Japan?

Sydney is 1 hour behind Japan. When it is 12:00 PM in Sydney it is 11:00 AM in Japan.

Do Sydney and Japan use different time zones?

Sydney (Australia) 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 Sydney–Japan difference?

Neither zone observes daylight saving time, so the -1h offset between Sydney and Japan is fixed all year.

Which other cities share Sydney's time zone?

AEST also covers Sydney, Melbourne, Brisbane, Canberra, Hobart, Gold Coast.

Which countries use AEST, Sydney's zone?

AEST is used in Australia (NSW, VIC, QLD, TAS, ACT), Papua New Guinea.

Is there a day difference between Sydney and Japan?

Not normally. The -1h gap only pushes the date over the previous day.

What is the time difference between Sydney and Japan?

Japan is -1h from Sydney.

What timezone is Sydney in?

Sydney operates on Australian Eastern Standard Time (AEST/AEDT). As Australia's financial capital, Sydney opens global markets at the start of the business day.

What timezone is Japan in?

Japan operates on its local timezone.

What are the business hours in Sydney?

Standard business hours in Sydney are 9:00 AM - 5:00 PM AEST.

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 Sydney, what time is it in Japan?

When it is 12:00 AM (midnight) in Sydney (AEST), it is -1h later in Japan (JST).