AWST to JST
+1hAWST
AWSTSOURCEJST
JSTGreen 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 – Australian Western Standard Time
UTC+08:00Australian Western Standard Time (AWST) is the time zone for Western Australia, 8 hours ahead of UTC.
- •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.
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.
Understanding the +1h Gap: AWST vs JST
AWST runs on Australian Western Standard Time (AWST) at UTC+08:00. JST runs on Japan Standard Time (JST) at UTC+09:00. That puts AWST 1 hour ahead of JST — a difference of +1h at the current offsets.
In practice, when it is 9:00 AM in AWST it is 10:00 AM in JST. Midnight in AWST is 1:00 AM in JST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
AWST to JST time conversion table
| AWST (AWST) | JST (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 AWST to JST time
- Scheduling a call from AWST to JST: a 10:00 AM start in AWST lands at 11:00 AM in JST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both AWST and JST 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.
- Booking travel or deliveries: tracking JST local time against AWST keeps pickup windows and arrival estimates honest across the +1h offset.
- 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 AWST and need JST 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 AWST and JST
Both AWST and JST 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
AWST and JST share 7 hours of working-hours overlap (9:00 AM–4:00 PM AWST), so scheduling a live meeting is straightforward.
AWST is 1 hour ahead of JST (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:
Frequently Asked Questions
What is the time difference between AWST and JST?
AWST (AWST, UTC+08:00) is 1 hour ahead of JST (JST, UTC+09:00). The gap is currently +1h.
How do I convert AWST time to JST time?
Add +1h to AWST local time. For example, 9:00 AM in AWST is 10:00 AM in JST.
What time is it in JST right now?
JST 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 AWST.
What is the best time to call JST from AWST?
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, AWST or JST?
AWST is 1 hour ahead of JST. When it is 12:00 PM in AWST it is 1:00 PM in JST.
Does daylight saving time affect the AWST–JST difference?
Neither zone observes daylight saving time, so the +1h offset between AWST and JST is fixed all year.
Which other cities share AWST's time zone?
AWST also covers Perth, Mandurah, Bunbury, Geraldton.
Which countries use AWST, AWST's zone?
AWST is used in Australia (Western Australia).
Is there a day difference between AWST and JST?
Not normally. The +1h gap only pushes the date over for late-evening times.
What is the time difference between AWST and JST?
JST is +1h from AWST.
What timezone is AWST in?
AWST operates on its local timezone.
What timezone is JST in?
JST operates on its local timezone.
Which countries use AWST (Australian Western Standard Time)?
AWST is used in Australia (Western Australia).
Does AWST observe daylight saving time?
No, AWST does not observe daylight saving time and remains at UTC+08:00 year-round.
What are some interesting facts about AWST?
Western Australia does not observe daylight saving time. Perth is the most isolated major city in the world.
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 AWST, what time is it in JST?
When it is 12:00 AM (midnight) in AWST (AWST), it is +1h later in JST (JST).
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See every conversion from AWST →·See every conversion from JST →