AEDT to JST
-2hAEDT
AEDTSOURCEJST
JSTGreen rows indicate typical business hours (9 AM - 5 PM)
AEDT and JST on the World Map
The map below highlights the AEDT (Australian Eastern Daylight Time) and JST (Japan Standard Time) timezone regions across the globe.
AEDT – Australian Eastern Daylight Time
UTC+11:00Australian Eastern Daylight Time (AEDT, UTC+11:00) is the daylight saving period in south-eastern Australia, from October to April.
- •AEDT runs from the first Sunday in October to the first Sunday in April.
- •AEDT is one hour ahead of Australian Eastern Standard Time (AEST).
- •Queensland does not observe daylight saving, so Brisbane stays on AEST.
- •During AEDT, Sydney is 16 hours ahead of New York and 11 hours ahead of UTC.
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.
AEDT to JST Time Difference – Complete Guide
AEDT runs on Australian Eastern Daylight Time (AEDT) at UTC+11:00. JST runs on Japan Standard Time (JST) at UTC+09:00. That puts AEDT 2 hours behind JST — a difference of -2h at the current offsets.
In practice, when it is 9:00 AM in AEDT it is 7:00 AM in JST. Midnight in AEDT is 10:00 PM in JST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
AEDT to JST time conversion table
| AEDT (AEDT) | JST (JST) | Day |
|---|---|---|
| 12:00 AM | 10:00 PM | previous day |
| 6:00 AM | 4:00 AM | same day |
| 7:00 AM | 5:00 AM | same day |
| 8:00 AM | 6:00 AM | same day |
| 9:00 AM | 7:00 AM | same day |
| 12:00 PM | 10:00 AM | same day |
| 3:00 PM | 1:00 PM | same day |
| 5:00 PM | 3:00 PM | same day |
| 6:00 PM | 4:00 PM | same day |
| 9:00 PM | 7:00 PM | same day |
Why people convert AEDT to JST time
- Scheduling a call from AEDT to JST: a 10:00 AM start in AEDT lands at 8:00 AM in JST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both AEDT and JST are inside the 9-to-5 working day between 11:00 AM and 5:00 PM AEDT time (9:00 AM–3:00 PM JST). That is roughly 6 hours of usable overlap.
- Coordinating a AEDT-based team with JST 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 AEDT" is unambiguous; "3 PM" across a -2h gap is not.
- Block 11:00 AM–5:00 PM AEDT as the recurring meeting window if you work primarily from AEDT and need JST colleagues present.
About AEDT (Australian Eastern Daylight Time)
Australian Eastern Daylight Time (AEDT) is the daylight saving period in south-eastern Australia, one hour ahead of Australian Eastern Standard Time (AEST, UTC+10:00). Because Australia is in the southern hemisphere, AEDT runs through the summer — from the first Sunday in October to the first Sunday in April — which is almost exactly the reverse of the European and North American schedules. New South Wales, Victoria, Tasmania and the Australian Capital Territory observe it; Queensland and the Northern Territory do not, so Brisbane stays on AEST year round while Sydney moves to AEDT. During AEDT, Sydney is 11 hours ahead of UTC and 16 hours ahead of New York.
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 AEDT and JST
Both AEDT and JST sit inside the 9 AM – 5 PM working day between 11:00 AM–5:00 PM AEDT, which is 9:00 AM–3:00 PM JST. That gives roughly 6 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
AEDT and JST share 6 hours of working-hours overlap (11:00 AM–5:00 PM AEDT), so scheduling a live meeting is straightforward.
AEDT is 2 hours behind JST (AEDT UTC+11:00 → JST UTC+09:00). The shared working window is 11:00 AM–5:00 PM AEDT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
AEDT
❄ Currently in Standard Time
Standard: UTC+10:00 · DST: UTC+11:00
Clocks spring forward on Sat, Oct 3, 2026
JST
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 AEDT and JST?
AEDT (AEDT, UTC+11:00) is 2 hours behind JST (JST, UTC+09:00). The gap is currently -2h.
How do I convert AEDT time to JST time?
Add -2h to AEDT local time. For example, 9:00 AM in AEDT is 7:00 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 -2h offset from AEDT.
What is the best time to call JST from AEDT?
Call between 11:00 AM and 5:00 PM AEDT — that maps to 9:00 AM–3:00 PM JST and keeps both parties inside the working day.
Which is behind, AEDT or JST?
AEDT is 2 hours behind JST. When it is 12:00 PM in AEDT it is 10:00 AM in JST.
Does daylight saving time affect the AEDT–JST difference?
Neither zone observes daylight saving time, so the -2h offset between AEDT and JST is fixed all year.
Which other cities share AEDT's time zone?
AEDT also covers Sydney, Melbourne, Canberra, Hobart, Newcastle.
Which countries use AEDT, AEDT's zone?
AEDT is used in Australia (NSW, Victoria, Tasmania, ACT).
Is there a day difference between AEDT and JST?
Not normally. The -2h gap only pushes the date over the previous day.
What is the time difference between AEDT and JST?
JST is -2h from AEDT.
What timezone is AEDT in?
AEDT operates on its local timezone.
What timezone is JST in?
JST operates on its local timezone.
Which countries use AEDT (Australian Eastern Daylight Time)?
AEDT is used in Australia (NSW, Victoria, Tasmania, ACT).
Does AEDT observe daylight saving time?
Yes, AEDT switches to AEDT during summer months.
What are some interesting facts about AEDT?
AEDT runs from the first Sunday in October to the first Sunday in April. AEDT is one hour ahead of Australian Eastern Standard Time (AEST).
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 AEDT, what time is it in JST?
When it is 12:00 AM (midnight) in AEDT (AEDT), it is -2h later in JST (JST).
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See every conversion from AEDT →·See every conversion from JST →