AEST to JST Time Converter

Convert Australian Eastern Standard Time to Japan Standard Time - Quick & Accurate

Sydney (AEST)
Tokyo (JST)
JST is 1 hour behind AEST (2 hours during AEDT)

Quick Time Conversion

Sydney
Australian Eastern Standard Time
UTC+10 (AEST) / UTC+11 (AEDT)
Tokyo
Japan Standard Time
UTC+9

Current Time Right Now

Australian Eastern (AEST/AEDT)
Japan Standard Time (JST)

Updates live every second

24-Hour Visual Comparison

AEST (Sydney)
12am AEST
1am AEST
2am AEST
3am AEST
4am AEST
5am AEST
6am AEST
7am AEST
8am AEST
9am AEST
10am AEST
11am AEST
12pm AEST
1pm AEST
2pm AEST
3pm AEST
4pm AEST
5pm AEST
6pm AEST
7pm AEST
8pm AEST
9pm AEST
10pm AEST
11pm AEST
12a6a12p6p12a
JST (Tokyo)
11pm JST
12am JST
1am JST
2am JST
3am JST
4am JST
5am JST
6am JST
7am JST
8am JST
9am JST
10am JST
11am JST
12pm JST
1pm JST
2pm JST
3pm JST
4pm JST
5pm JST
6pm JST
7pm JST
8pm JST
9pm JST
10pm JST
11p5a11a5p11p
Business Hours (9AM-5PM)
Evening (5PM-9PM)
Night (9PM-6AM)

Hover over any hour to see corresponding time in both zones

Best Time for Meeting/Call

To schedule a meeting between AEST and JST:

Best Window (JST)
9:00 AM - 5:00 PM
Which is (AEST)
10:00 AM - 6:00 PM
Both parties in business hours
8-hour overlap window
Ideal for Australia-Japan business

Pro Tip: Schedule calls between 10:00 AM - 5:00 PM AEST for optimal overlap with Japanese business hours

Complete AEST to JST Conversion Table

AEST TimeJST TimeContext
12:00 AM10:00 PM
Midnight AEST
01:00 AM11:00 PM
Late Night
02:00 AM12:00 AM
Late Night
03:00 AM01:00 AM
Late Night
04:00 AM02:00 AM
Late Night
05:00 AM03:00 AM
Late Night
06:00 AM04:00 AM
Early Morning AEST
07:00 AM05:00 AM
Night Time
08:00 AM06:00 AM
Work Starts AEST
09:00 AM07:00 AM
Meeting Window
10:00 AM08:00 AM
Meeting Window
11:00 AM09:00 AM
Meeting Window

Australian Eastern Standard Time (AEST)

UTC+10
UTC+11 during AEDT
Major Cities:
  • • Sydney
  • • Melbourne
  • • Brisbane
  • • Canberra
  • • Hobart
Daylight Saving:

AEDT (UTC+11) from October to April

IANA Identifier:

Australia/Sydney

Japan Standard Time (JST)

UTC+9
No daylight saving time
Major Cities:
  • • Tokyo
  • • Osaka
  • • Yokohama
  • • Nagoya
  • • Sapporo
Daylight Saving:

Japan does not observe DST

IANA Identifier:

Asia/Tokyo

Australian Eastern Standard Time (AEST) vs Japan Standard Time (JST)

Australian Eastern Standard Time (AEST)Japan Standard Time (JST)

Australian Eastern Standard Time (AEST) is 10 hours ahead of Coordinated Universal Time (UTC+10). During daylight saving time, the region observes Australian Eastern Daylight Time (AEDT), which is UTC+11.

Japan Standard Time (JST) is 9 hours ahead of Coordinated Universal Time (UTC+9). Japan does not observe daylight saving time, so the offset remains constant throughout the year.

Where Is It Used?

  • New South Wales: Sydney, Newcastle, Wollongong
  • Victoria: Melbourne, Geelong, Ballarat
  • Queensland: Brisbane, Gold Coast, Cairns
  • Australian Capital Territory: Canberra
  • Tasmania: Hobart, Launceston
  • Japan: All of Japan
  • Major Cities: Tokyo, Osaka, Yokohama, Nagoya, Sapporo, Fukuoka, Kobe, Kyoto
  • Note: JST is used uniformly across all Japanese territories

Key Facts

  • UTC Offset: UTC+10 (AEST) / UTC+11 (AEDT)
  • Region: Eastern Australia
  • Known For: Major economic and cultural hub of Australia
  • Largest Cities: Sydney (5.3M), Melbourne (5.0M), Brisbane (2.5M)
  • Daylight Saving: Begins first Sunday in October, ends first Sunday in April
  • Note: Queensland does not observe daylight saving time
  • UTC Offset: UTC+9 (year-round)
  • Region: All of Japan
  • Known For: Technology, manufacturing, and cultural innovation
  • Largest Cities: Tokyo (14M), Yokohama (3.7M), Osaka (2.7M)
  • No DST: Japan abolished daylight saving time in 1951
  • Stability: Consistent time zone year-round simplifies business operations

Quick Reference

Time Difference: JST is 1 hour behind AEST (2 hours behind during AEDT)
Variability: The difference changes because Australia observes DST but Japan does not
Distance: Approximately 7,800 km between Sydney and Tokyo
UTC Offsets: AEST = UTC+10, AEDT = UTC+11 | JST = UTC+9 (constant)
2025 Australian DST: Starts October 5 at 2:00 AM, Ends April 6, 2026 at 3:00 AM

Frequently Asked Questions

JST (Japan Standard Time) is 1 hour behind AEST (Australian Eastern Standard Time). During Australian daylight saving time (AEDT), JST is 2 hours behind. This means when it's 12:00 PM in Sydney (AEST), it's 11:00 AM in Tokyo (JST).

The best time to call from AEST to JST is between 9:00 AM and 5:00 PM AEST, which corresponds to 8:00 AM to 4:00 PM JST. This ensures both parties are within standard business hours.

Yes, the time difference changes because Australia observes Daylight Saving Time but Japan does not. During AEDT (October-April), the difference is 2 hours. During AEST (April-October), the difference is 1 hour.

AEST cities include Sydney, Melbourne, Brisbane, Canberra, and Hobart. JST cities include Tokyo, Osaka, Yokohama, Nagoya, and Sapporo.

In 2025, Australian DST (AEDT) starts on October 5 at 2:00 AM and ends on April 6 at 3:00 AM. During AEDT, the time zone becomes UTC+11.

Related Time Converters

JST → AESTAEST → PSTJST → PSTAEST → UTCJST → UTCAEST → GMTJST → GMTView All