Japan Standard Time (jst) is used in Japan. The IANA timezone identifier is Asia/Tokyo.

Australian Eastern Standard Time (aest) is used in Australia. The IANA timezone identifier is Australia/Brisbane.

JST to AEST Time Converter

Japan Standard Time → Australian Eastern Standard Time

JST = UTC+9AEST = UTC+10

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

AEST (Brisbane)

Australia · +1h

10:00

London

United Kingdom · -8h

01:00

New York

USA · -13h

20:00-1 day

Dubai

United Arab Emirates · -5h

04:00

Sydney

Australia · +1h

10:00

JST (Tokyo) ↔ AEST (Brisbane) — time offset

JST (Tokyo) is 1 hour behind AEST (Brisbane). When JST (Tokyo) clocks hit noon, AEST (Brisbane) reads 13:00.

JST (Tokyo) is in the Asia/Tokyo timezone. AEST (Brisbane) is in Australia/Brisbane. The difference is 1 hour.

Mutual working hours

Every working day, JST (Tokyo) and AEST (Brisbane) are both in business hours for 7 hours simultaneously.

00:0006:0012:0018:0024:00

JST (Tokyo)

AEST (Brisbane)

Overlap (7h)

When to schedule across time zones

Both JST (Tokyo) and AEST (Brisbane) are in standard hours simultaneously for 7h per day. 3 recommended slots shown below.

09:00 Tokyo / 10:00 Brisbane✓ Both working

10:00 Tokyo / 11:00 Brisbane✓ Both working

11:00 Tokyo / 12:00 Brisbane✓ Both working

Based on standard 09:00–17:00 working hours in each location's local time.

Holiday calendar for both locations

⚡ Both locations have upcoming holidays, check availability before scheduling.

JST (Tokyo)7 holidays

Jul 20Marine Day

Aug 11Mountain Day

Sep 21Respect for the Aged Day

Sep 23Autumnal Equinox Day

Oct 12Sports Day

AEST (Brisbane)7 holidays

Aug 3Picnic Day

Sep 28King's Birthday

Oct 5Labour Day

Oct 5King's Birthday

Nov 3Melbourne Cup

Working across JST (Tokyo) and AEST (Brisbane)

Working across JST (Tokyo) (Japan) and AEST (Brisbane) (Australia) involves a 1-hour gap. The good news: there is a 7-hour mutual window in standard business hours that lets both sides collaborate without anyone joining at an unreasonable hour.

💡 Best practice for cross-timezone meetings

✅

09:00–10:00 in JST (Tokyo) = 10:00–11:00 in AEST (Brisbane). Both sides are in standard business hours during this window.

✅

10:00–11:00 in JST (Tokyo) = 11:00–12:00 in AEST (Brisbane). Both sides are in standard business hours during this window.

✅

11:00–12:00 in JST (Tokyo) = 12:00–13:00 in AEST (Brisbane). Both sides are in standard business hours during this window.

DST transitions can silently shift your meeting times by an hour. The ClockinSync Chrome Extension tracks these changes automatically so you never get caught off guard.

Get the Extension — Free →

Use the time slider above to find the exact equivalent time for any moment in JST (Tokyo). The input bar accepts natural language like "3pm", "15:30", or "9am Rome" for instant conversions.

JST (Tokyo) ↔ AEST (Brisbane)

7h of business hours overlap daily (09:00–17:00)

JST (Tokyo)

AEST (Brisbane)

00:00

01:00

02:00

03:00

04:00

05:00

06:00

07:00

08:00

09:00Working

10:00Working

11:00Working

12:00Working

13:00Working

14:00Working

15:00Working

16:00Working

17:00off

17:00

18:00

19:00

20:00

21:00

22:00

23:00

00:00+1d

Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.

Frequently Asked Questions

What is the difference between jst and aest?

Japan Standard Time (jst) is UTC+9 and Australian Eastern Standard Time (aest) is UTC+10. The difference between them is 1 hours.

Where is jst used?

Japan Standard Time (jst) is used in Japan and surrounding regions. The IANA timezone identifier is Asia/Tokyo.

Where is aest used?

Australian Eastern Standard Time (aest) is used in Australia and surrounding regions. The IANA timezone identifier is Australia/Brisbane.

How do I convert jst to aest?

Use the interactive converter above. Drag the time slider to any jst time and the aest equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.

Popular JST conversions

JST → London JST → New York JST → Dubai JST → Sydney JST → Paris JST → Berlin JST → Singapore JST → Los Angeles JST → Toronto JST → Mumbai

Popular AEST conversions

London → AEST New York → AEST Tokyo → AEST Dubai → AEST Sydney → AEST Paris → AEST Berlin → AEST Singapore → AEST Los Angeles → AEST Toronto → AEST