Question 1

What is the time difference between JST and AEST?

Accepted Answer

Australian Eastern Standard Time (AEST) is 2 hours ahead of Japan Standard Time (JST). Use the conversion table above to see the exact time for each hour.

Question 2

How do I convert JST to AEST?

Accepted Answer

To convert JST to AEST, add 2 hours to the JST time. For example, 9:00 AM JST is 11:00 AM AEST.

Question 3

What time is it in AEST when it's noon in JST?

Accepted Answer

When it's 12:00 PM (noon) in JST, it's 2:00 PM in AEST. AEST is 2 hours ahead of JST.

Question 4

How many hours ahead is AEST from JST?

Accepted Answer

AEST is 2 hours ahead of JST. This means when it's 9:00 AM in JST, it's 11:00 AM in AEST.

Question 5

Is AEST ahead or behind JST?

Accepted Answer

AEST is ahead of JST by 2 hours. Clocks in AEST show a later time than JST.

Question 6

Does JST observe daylight saving time?

Accepted Answer

No, Japan Standard Time does not observe daylight saving time. The UTC offset remains the same year-round.

Question 7

Does AEST observe daylight saving time?

Accepted Answer

Yes, Australian Eastern Standard Time observes daylight saving time. During DST, the abbreviation changes to AEDT and clocks move forward by one hour.

Question 8

What is the best time to call from JST to AEST?

Accepted Answer

The best time for a call between JST and AEST is during overlapping business hours (9 AM – 5 PM) in both timezones. Check the color-coded conversion table above — green hours indicate business hours in both zones.

Question 9

When does daylight saving time change in AEST?

Accepted Answer

Daylight saving time transitions vary by year and region. Australian Eastern Standard Time observes DST, which typically shifts clocks forward by one hour in spring and back in fall. During DST transitions, the time difference between JST and AEST may temporarily change. Check our DST change calendar for exact dates.

Question 10

Do JST and AEST ever have the same time?

Accepted Answer

No, JST and AEST never show the same time. However, because AEST observes daylight saving time and JST does not, the time difference between them changes by one hour during DST transitions.

Japan Standard Time (JST)	Period	Australian Eastern Standard Time (AEDT)	Period
12:00 AM	Night	2:00 AM	Night
1:00 AM	Night	3:00 AM	Night
2:00 AM	Night	4:00 AM	Night
3:00 AM	Night	5:00 AM	Night
4:00 AM	Night	6:00 AM	Morning
5:00 AM	Night	7:00 AM	Morning
6:00 AM	Morning	8:00 AM	Morning
7:00 AM	Morning	9:00 AM	Business
8:00 AM	Morning	10:00 AM	Business
9:00 AM	Business	11:00 AM	Business
10:00 AM	Business	12:00 PM	Business
11:00 AM	Business	1:00 PM	Business
12:00 PM	Business	2:00 PM	Business
1:00 PM	Business	3:00 PM	Business
2:00 PM	Business	4:00 PM	Business
3:00 PM	Business	5:00 PM	Business
4:00 PM	Business	6:00 PM	Evening
5:00 PM	Business	7:00 PM	Evening
6:00 PM	Evening	8:00 PM	Evening
7:00 PM	Evening	9:00 PM	Evening
8:00 PM	Evening	10:00 PM	Evening
9:00 PM	Evening	11:00 PM	Evening
10:00 PM	Evening	12:00 AM+1d	Night
11:00 PM	Evening	1:00 AM+1d	Night

JST to AEST Converter

Timezone Details

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JST to AEST Conversion Table

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