Does it handle Daylight Saving Time?

Yes, the tool automatically adjusts for Daylight Saving Time based on the specific date you select, ensuring accurate conversions year-round.

Can I add multiple cities?

Yes, you can add as many cities as you need to the dashboard to compare times across your entire global network simultaneously.

AEST to Osaka

-1h

AEST

AESTSOURCE

UTC+10:00DST observed

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Osaka

JST

Japan · UTC+09:00

HH11

MM00

11:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

AEST

Osaka

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.

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 Osaka

Wikipedia

Osaka operates on Japan Standard Time (JST), UTC+9. As Japan's second economic center and a manufacturing hub, Osaka shares business hours with Tokyo.

Population:2.8 million

Metro:19 million

Business Hours:9:00 AM - 6:00 PM JST

Currency:JPY (¥)

Stock Exchange:OSE (Osaka Exchange - derivatives)

Key Landmarks

Osaka CastleDotonboriUniversal Studios JapanShitennoji TempleUmeda Sky Building

Did You Know?

Osaka Castle was originally built in 1583 and has been rebuilt several times.

Learn more about JST timezone →

AEST vs Osaka: Offsets, DST and Best Call Times

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

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

AEST to Osaka time conversion table

AEST (AEST)	Osaka (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 Osaka time

Scheduling a call from AEST to Osaka: a 10:00 AM start in AEST lands at 9:00 AM in Osaka, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both AEST and Osaka 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.
Watching a live event or market open: AEST viewers need 8:00 AM in Osaka to catch a 9:00 AM start there, and 1:00 AM if the event is anchored to AEST.

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 Osaka 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 Osaka

Both AEST and Osaka 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 Osaka 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 Osaka (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

Osaka

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:

⏳

History of Timekeeping

From sundials to atomic clocks - 5000 years of measuring time

🌍

How Time Zones Work

UTC, offsets, and why zones don't follow straight lines

☀️

Daylight Saving Time

DST dates, which countries observe it, and the ongoing debate

Frequently Asked Questions

What is the time difference between AEST and Osaka?

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

How do I convert AEST time to Osaka time?

Add -1h to AEST local time. For example, 9:00 AM in AEST is 8:00 AM in Osaka.

What time is it in Osaka right now?

Osaka 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 Osaka 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 Osaka?

AEST is 1 hour behind Osaka. When it is 12:00 PM in AEST it is 11:00 AM in Osaka.

Do AEST and Osaka use different time zones?

AEST uses AEST at UTC+10:00, while Osaka (Japan) uses JST at UTC+09:00. The IANA identifiers are Australia/Sydney and Asia/Tokyo.

Does daylight saving time affect the AEST–Osaka difference?

Neither zone observes daylight saving time, so the -1h offset between AEST and Osaka 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 Osaka?

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

What is the time difference between AEST and Osaka?

Osaka is -1h from AEST.

What timezone is AEST in?

AEST operates on its local timezone.

What timezone is Osaka in?

Osaka operates on Japan Standard Time (JST), UTC+9. As Japan's second economic center and a manufacturing hub, Osaka shares business hours with Tokyo.