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

Australian Eastern Daylight Time (aedt) is used in Australia. The IANA timezone identifier is Australia/Sydney.

JST to AEDT Time Converter

Japan Standard Time → Australian Eastern Daylight Time

JST = UTC+9AEDT = UTC+10

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

AEDT (Sydney)

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

Paris

France · -7h

02:00

JST (Tokyo) ↔ AEDT (Sydney) — time offset

JST (Tokyo) is 1 hour behind AEDT (Sydney). When it's noon in JST (Tokyo), it's 13:00 in AEDT (Sydney).

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

Mutual working hours

Both JST (Tokyo) and AEDT (Sydney) are simultaneously in business hours for 7 hours per day (assuming standard 9:00–17:00 working hours).

00:0006:0012:0018:0024:00

JST (Tokyo)

AEDT (Sydney)

Overlap (7h)

Recommended meeting windows

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

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

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

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

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

Public holidays this year

⚡ Upcoming holidays in both locations, confirm with your contact before booking.

JST (Tokyo)7 holidays

Jul 20Marine Day

Aug 11Mountain Day

Sep 21Respect for the Aged Day

Sep 23Autumnal Equinox Day

Oct 12Sports Day

AEDT (Sydney)7 holidays

Aug 3Picnic Day

Sep 28King's Birthday

Oct 5Labour Day

Oct 5King's Birthday

Nov 3Melbourne Cup

JST (Tokyo) and AEDT (Sydney) — practical scheduling

JST (Tokyo) (Japan) leads AEDT (Sydney) (Australia) by 1 hours. Despite the gap, a 7-hour window of shared business hours each day keeps real-time collaboration practical for both sides.

💡 Practical scheduling guidelines

✅

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

✅

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

✅

11:00–12:00 in JST (Tokyo) = 12:00–13:00 in AEDT (Sydney). 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) ↔ AEDT (Sydney)

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

JST (Tokyo)

AEDT (Sydney)

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 aedt?

Japan Standard Time (jst) is UTC+9 and Australian Eastern Daylight Time (aedt) 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 aedt used?

Australian Eastern Daylight Time (aedt) is used in Australia and surrounding regions. The IANA timezone identifier is Australia/Sydney.

How do I convert jst to aedt?

Use the interactive converter above. Drag the time slider to any jst time and the aedt 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 AEDT conversions

London → AEDT New York → AEDT Tokyo → AEDT Dubai → AEDT Paris → AEDT Berlin → AEDT Singapore → AEDT Los Angeles → AEDT Toronto → AEDT Mumbai → AEDT