The short answer
10am in Sydney is 9am in Japan Standard Time.
Sydney is 1 hour ahead of Japan Standard Time. Both sides are inside the standard 9-to-5 working day, so this is a sociable time for a call in both places.
Sydney☀
10am
Japan Standard Time☀
9am
Right now
2:02amAEST · UTC+10:00 · Sun, Jun 28
1:02amJST · UTC+09:00 · Sun, Jun 28
Read across to convert
Sydney
AEST · UTC+10:00
Japan Standard Time
JST · UTC+09:00
Pinned10amSydney=9amJapan Standard Time
12amSun
11pmSat ·−1d
1am
12amSun
NOW
2am
1am
3am
2am
4am
3am
5am
4am
6am
5am
7am
6am
8am
7am
9am
WORK8am
PINNED
10am
WORK9am
WORK11am
WORK10am
WORK12pm
WORK11am
WORK1pm
WORK12pm
WORK2pm
WORK1pm
WORK3pm
WORK2pm
WORK4pm
WORK3pm
WORK5pm
4pm
WORK6pm
5pm
7pm
6pm
8pm
7pm
9pm
8pm
10pm
9pm
11pm
10pm
daylightnightworking hoursoverlap
Best time to meet=
Best for a call
Sydney
10am–5pm
Japan Standard Time
9am–4pm
Popular conversions
Quick reference.
9amSydney=8amJapan Standard Time
12pmSydney=11amJapan Standard Time
3pmSydney=2pmJapan Standard Time
5pmSydney=4pmJapan Standard Time
9pmSydney=8pmJapan Standard Time
In context
What each side covers.
Related converters
Other popular pairs.
Pacific Time
9:02am
India Standard Time
9:32pm
Pacific Time to India12 hours 30 minutes behind
Eastern Standard Time
12:02pm
Central European Time
6:02pm
Eastern Time to Central Europe6 hours behind
India Standard Time
9:32pm
Eastern Standard Time
12:02pm
India to Eastern Time9 hours 30 minutes ahead
Greenwich Mean Time
5:02pm
India Standard Time
9:32pm
London to India4 hours 30 minutes behind
Pacific Standard Time
9:02am
Eastern Standard Time
12:02pm
Pacific to Eastern Time3 hours behind
Central European Time
6:02pm
India Standard Time
9:32pm
Central Europe to India3 hours 30 minutes behind
Frequently asked
Quick answers about converting between Sydney and Japan Standard Time. Can't find what you need? Email [email protected].
- What is the time difference between Sydney and Japan Standard Time?
- Sydney is 1 hour ahead of Japan Standard Time right now. We always show the live, daylight-saving-correct difference, so this figure already accounts for whichever side is observing summer time today.
- When it's 10am in Sydney, what time is it in Japan Standard Time?
- 10am in Sydney is 9am in Japan Standard Time. Both sides are inside the standard 9-to-5 working day, so this is a sociable time for a call in both places. Use the hour-by-hour table above to read any other time across.
- What's the best time for a call between Sydney and Japan Standard Time?
- 10am–5pm in Sydney lines up with 9am–4pm in Japan Standard Time — both sides are inside a 9-to-5 working day.
- Does this account for daylight saving time?
- Yes. We track every clock change in both places, so the abbreviations you see — AEST and JST — are the ones actually in effect right now, not a fixed all-year value. When either side changes its clocks, this page updates automatically.
- Why is the date sometimes different on each side?
- When two places are far enough apart, the same moment can fall on different calendar days. That is why some conversions are marked "previous day" or "next day" — it is the same instant in time, read off two clocks that crossed midnight at different points.