Question 1

What is the time difference between AEST and GMT?

Accepted Answer

Greenwich Mean Time (GMT) is 11 hours behind Australian Eastern Standard Time (AEST). Use the conversion table above to see the exact time for each hour.

Question 2

How do I convert AEST to GMT?

Accepted Answer

To convert AEST to GMT, subtract 11 hours from the AEST time. For example, 9:00 AM AEST is 10:00 PM GMT.

Question 3

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

Accepted Answer

When it's 12:00 PM (noon) in AEST, it's 1:00 AM in GMT. GMT is 11 hours behind AEST.

Question 4

How many hours behind is GMT from AEST?

Accepted Answer

GMT is 11 hours behind AEST. This means when it's 9:00 AM in AEST, it's 10:00 PM in GMT.

Question 5

Is GMT ahead or behind AEST?

Accepted Answer

GMT is behind AEST by 11 hours. Clocks in GMT show an earlier time than AEST.

Question 6

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 7

Does GMT observe daylight saving time?

Accepted Answer

Yes, Greenwich Mean Time observes daylight saving time. During DST, the abbreviation changes to BST and clocks move forward by one hour.

Question 8

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

Accepted Answer

The best time for a call between AEST and GMT 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 AEST and GMT may temporarily change. Check our DST change calendar for exact dates.

Question 10

Do AEST and GMT ever have the same time?

Accepted Answer

No, AEST and GMT are always 11 hours apart. Both timezones observe DST, so the difference remains consistent.

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

AEST to GMT Converter

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AEST to GMT Conversion Table

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