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.

Perth to Osaka

+1h

Perth

AWSTSOURCE

Australia · UTC+08:00

HH12

MM00

12:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Osaka

JST

Japan · UTC+09:00

HH01

MM00

13:00 (24-hr)

12 AM6 AM12 PM6 PM12 AM

Quick Reference

Time Conversion Table

Perth

Osaka

12:00 AM

1:00 AM

2:00 AM

3:00 AM

4:00 AM

5:00 AM

6:00 AM

7:00 AM

8:00 AM

9:00 AM

10:00 AM

11:00 AM

12:00 PM

1:00 PM

2:00 PM

3:00 PM

4:00 PM

5:00 PM

6:00 PM

7:00 PM

8:00 PM

9:00 PM

10:00 PM

11:00 PM

Green rows indicate typical business hours (9 AM - 5 PM)

AWST and JST on the World Map

The map below highlights the AWST (Australian Western Standard Time) and JST (Japan Standard Time) timezone regions across the globe.

AWST Zone

→

JST Zone

Explore all world timezones interactively →

AWST – Australian Western Standard Time

UTC+08:00

Australian Western Standard Time (AWST) is the time zone for Western Australia, 8 hours ahead of UTC.

Countries in AWST

Australia (Western Australia)

Major Cities in AWST

PerthMandurahBunburyGeraldton

Key Facts about AWST

•Western Australia does not observe daylight saving time.
•Perth is the most isolated major city in the world.
•AWST is the same offset as China Standard Time and Singapore Time.

Daylight Saving:No – UTC+08:00 year-round

Learn more about AWST 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 Perth

Wikipedia

Perth operates on Australian Western Time (AWST), UTC+8 with no daylight saving. As Australia's mining capital, Perth coordinates with Asian markets.

Population:2.1 million

Metro:2.2 million

Business Hours:9:00 AM - 5:00 PM AWST

Currency:AUD (A$)

Stock Exchange:ASX (via Sydney)

Key Landmarks

Kings ParkPerth MintElizabeth QuayCottesloe BeachFremantle Prison

Did You Know?

Western Australia does not observe daylight saving time.

Learn more about AWST timezone →

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 →

Perth vs Osaka: Offsets, DST and Best Call Times

Perth runs on Australian Western Standard Time (AWST) at UTC+08:00. Osaka runs on Japan Standard Time (JST) at UTC+09:00. That puts Perth 1 hour ahead of Osaka — a difference of +1h at the current offsets.

In practice, when it is 9:00 AM in Perth it is 10:00 AM in Osaka. Midnight in Perth is 1:00 AM in Osaka. Neither zone observes daylight saving time, so the offset between them stays constant all year.

Perth to Osaka time conversion table

Perth (AWST)	Osaka (JST)	Day
12:00 AM	1:00 AM	same day
6:00 AM	7:00 AM	same day
7:00 AM	8:00 AM	same day
8:00 AM	9:00 AM	same day
9:00 AM	10:00 AM	same day
12:00 PM	1:00 PM	same day
3:00 PM	4:00 PM	same day
5:00 PM	6:00 PM	same day
6:00 PM	7:00 PM	same day
9:00 PM	10:00 PM	same day

Why people convert Perth to Osaka time

Scheduling a call from Perth to Osaka: a 10:00 AM start in Perth lands at 11:00 AM in Osaka, so you can confirm the slot without doing the arithmetic yourself.
Finding shared working hours: both Perth and Osaka are inside the 9-to-5 working day between 9:00 AM and 4:00 PM AWST time (10:00 AM–5:00 PM JST). That is roughly 7 hours of usable overlap.
Keeping family and friends in sync: knowing that 8:00 PM in Perth is 9:00 PM in Osaka makes it easy to avoid calling at 3 AM.

Always state the zone abbreviation, not just the hour. "3:00 PM AWST" is unambiguous; "3 PM" across a +1h gap is not.
Block 9:00 AM–4:00 PM AWST as the recurring meeting window if you work primarily from Perth and need Osaka colleagues present.

About AWST (Australian Western Standard Time)

Australian Western Standard Time (AWST) is used in Western Australia. WA does not observe daylight saving time, having rejected it in multiple referendums. Perth is the most remote major city in the world.

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 Perth and Osaka

Both Perth and Osaka sit inside the 9 AM – 5 PM working day between 9:00 AM–4:00 PM AWST, which is 10:00 AM–5:00 PM JST. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

Perth and Osaka share 7 hours of working-hours overlap (9:00 AM–4:00 PM AWST), so scheduling a live meeting is straightforward.

Perth is 1 hour ahead of Osaka (AWST UTC+08:00 → JST UTC+09:00). The shared working window is 9:00 AM–4:00 PM AWST. Remember to re-check around daylight-saving transitions.

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 Perth and Osaka?

Perth (AWST, UTC+08:00) is 1 hour ahead of Osaka (JST, UTC+09:00). The gap is currently +1h.

How do I convert Perth time to Osaka time?

Add +1h to Perth local time. For example, 9:00 AM in Perth is 10:00 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 Perth.

What is the best time to call Osaka from Perth?

Call between 9:00 AM and 4:00 PM AWST — that maps to 10:00 AM–5:00 PM JST and keeps both parties inside the working day.

Which is ahead, Perth or Osaka?

Perth is 1 hour ahead of Osaka. When it is 12:00 PM in Perth it is 1:00 PM in Osaka.

Do Perth and Osaka use different time zones?

Perth (Australia) uses AWST at UTC+08:00, while Osaka (Japan) uses JST at UTC+09:00. The IANA identifiers are Australia/Perth and Asia/Tokyo.

Does daylight saving time affect the Perth–Osaka difference?

Neither zone observes daylight saving time, so the +1h offset between Perth and Osaka is fixed all year.

Which other cities share Perth's time zone?

AWST also covers Perth, Mandurah, Bunbury, Geraldton.

Which countries use AWST, Perth's zone?

AWST is used in Australia (Western Australia).

Is there a day difference between Perth and Osaka?

Not normally. The +1h gap only pushes the date over for late-evening times.

What is the time difference between Perth and Osaka?

Osaka is +1h from Perth.

What timezone is Perth in?

Perth operates on Australian Western Time (AWST), UTC+8 with no daylight saving. As Australia's mining capital, Perth coordinates with Asian markets.

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.

What are the business hours in Perth?

Standard business hours in Perth are 9:00 AM - 5:00 PM AWST.

What are the business hours in Osaka?

Standard business hours in Osaka are 9:00 AM - 6:00 PM JST.

What is the best time to schedule a call between Perth and Osaka?

The best overlap for a call is when both cities are in business hours. Perth works 9:00 AM - 5:00 PM AWST and Osaka works 9:00 AM - 6:00 PM JST (+1h difference). Try scheduling during the overlapping window for maximum convenience.

What currencies are used in Perth and Osaka?

Perth uses AUD (A$) while Osaka uses JPY (¥). Check current exchange rates when planning travel or business between these cities.

How do Perth and Osaka compare in size?

Perth has a population of approximately 2.1 million (metro: 2.2 million), while Osaka has approximately 2.8 million (metro: 19 million).

What are the major landmarks in Perth and Osaka?

Perth is known for Kings Park, Perth Mint, Elizabeth Quay. Osaka is famous for Osaka Castle, Dotonbori, Universal Studios Japan.

Do Perth and Osaka have stock exchanges?

Yes. Perth has the ASX (via Sydney) and Osaka has the OSE (Osaka Exchange - derivatives). The +1h time difference affects trading hour overlaps between these exchanges.