JST to AEST Converter
Time Difference
Japan Standard Time is 1 hours behind Australian Eastern Standard Time
11:00 pm23:00 in JST is 12:00 am00:00 in AEST
JST to AEST call time
Best time for a conference call or a meeting is between 8am-5pm in JST which corresponds to 9am-6pm in AEST
11:00 pm23:00 Japan Standard Time (JST). Offset UTC +9:00 hours
12:00 am00:00 Australian Eastern Standard Time (AEST). Offset UTC +10:00 hours
11:00 pm23:00 JST / 12:00 am00:00 AEST
JST | AEST |
---|---|
12am (midnight) | 1am |
1am | 2am |
2am | 3am |
3am | 4am |
4am | 5am |
5am | 6am |
6am | 7am |
7am | 8am |
8am | 9am |
9am | 10am |
10am | 11am |
11am | 12pm (noon) |
12pm (noon) | 1pm |
1pm | 2pm |
2pm | 3pm |
3pm | 4pm |
4pm | 5pm |
5pm | 6pm |
6pm | 7pm |
7pm | 8pm |
8pm | 9pm |
9pm | 10pm |
10pm | 11pm |
11pm | 12am (midnight) |
0:00 | 1:00 |
1:00 | 2:00 |
2:00 | 3:00 |
3:00 | 4:00 |
4:00 | 5:00 |
5:00 | 6:00 |
6:00 | 7:00 |
7:00 | 8:00 |
8:00 | 9:00 |
9:00 | 10:00 |
10:00 | 11:00 |
11:00 | 12:00 |
12:00 | 13:00 |
13:00 | 14:00 |
14:00 | 15:00 |
15:00 | 16:00 |
16:00 | 17:00 |
17:00 | 18:00 |
18:00 | 19:00 |
19:00 | 20:00 |
20:00 | 21:00 |
21:00 | 22:00 |
22:00 | 23:00 |
23:00 | 0:00 |
Japan Standard Time
Offset: JST is 9 hours ahead Greenwich Mean Time (GMT) and is used in Asia
Countries: It is used in following countries: Japan
Principal Cities: The largest city in the JST timezone is Tokyo from Japan with population about 8.337 million people. Other major cities in the area are Yokohama, Osaka shi, Nagoya shi, Sapporo
Daylight Saving: Japan Standard Time (JST) is not adjusted for daylight saving therefore JST remains the same through out the year. This means, unlike some time zones where the clock is set forward by one hour every summer and backward by one hour during winter to adjust for daylight saving, Japan Standard Time remains the same

JST representations, usage and related time zones
- +09 - basic short
- +0900 - basic
- +09:00 - extended
- +0900 - sign character (+) followed by a four digit time providing hours (09) and minutes (00) of the offset. Indicates nine hour and zero minutes time differences to the east of the zero meridian.
- India - Military abbreviation for JST
- I - short form of 'India'
- Asia/Tokyo
- Japan
- AWDT - Australian Western Daylight Time
- CHOST - Choibalsan Summer Time
- I - India Time Zone
- IRKST - Irkutsk Summer Time
- JST - Japan Standard Time
- KST - Korea Standard Time
- PWT - Palau Time
- TLT - East Timor Time
- ULAST - Ulaanbaatar Summer Time
- WIT - Eastern Indonesian Time
- YAKT - Yakutsk Time
Australian Eastern Standard Time
Offset: AEST is 10 hours ahead Greenwich Mean Time (GMT) and is used in Australia
Countries: It is used in following countries: Australia
Principal Cities: The largest city in the AEST timezone is Sydney from Australia with population about 4.627 million people. Other major cities in the area are Melbourne, Brisbane, Gold Coast, Canberra

Daylight Saving: This is a standard timezone, however during summer some places switch clocks for one hour forward when daylight saving comes into effect and observe Australian Eastern Daylight Time (AEDT).
Start: Australian Eastern Standard Time (AEST) started on Sunday, April 6, 2025 at 3:00 am local time and clocks were set one hour back to Sunday, April 6, 2025, 2:00 am. Standard time starts annually the on first Sunday of April.
End: Australian Eastern Standard Time (AEST) ends on Sunday, October 5, 2025 at 2:00 am local time and clocks are set one hour forward to Sunday, October 5, 2025, 3:00 am local daylight time instead. Standard time starts annually the on first Sunday of October.
Australian Eastern Standard Time (AEST) is used in Queensland, Victoria, Tasmania, New South Wales (except Broken Hill), Australian Capital Territory and in folling major cities Brisbane, Sydney, Melbourne, Hobart, Canberra
Only part of Australia observe daylight saving. It is used in New South Wales, Victoria, South Australia, Tasmania, and the Australian Capital Territory. Daylight saving is not observed in Queensland, Western Australia or the Northern Territory.
AEST representations, usage and related time zones
- +10 - basic short
- +1000 - basic
- +10:00 - extended
- +1000 - sign character (+) followed by a four digit time providing hours (10) and minutes (00) of the offset. Indicates ten hour and zero minutes time differences to the east of the zero meridian.
- Kilo - Military abbreviation for AEST
- K - short form of 'Kilo'
- Antarctica/Macquarie
- Australia/ACT
- Australia/Brisbane
- Australia/Canberra
- Australia/Currie
- Australia/Hobart
- Australia/Lindeman
- Australia/Melbourne
- Australia/NSW
- Australia/Queensland
- Australia/Sydney
- Australia/Tasmania
- Australia/Victoria
- AEST - Australian Eastern Standard Time
- CHUT - Chuuk Time
- ChST - Chamorro Standard Time
- K - Kilo Time Zone
- KDT - Korea Daylight Time
- PGT - Papua New Guinea Time
- VLAT - Vladivostok Time
- YAKST - Yakutsk Summer Time
- YAPT - Yap Time