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AEST to GMT converter
Australian Eastern Time
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Greenwich Mean Time
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Greenwich Mean Time is 11 hours behind Australian Eastern Time for most of the year, and 10 hours behind for part of it, because the two change their clocks on different dates (or only one of them changes at all).
When does the difference change?
In 2026:
- January 1 to April 4: Greenwich Mean Time is 11 hours behind Australian Eastern Time
- April 5 to October 3: Greenwich Mean Time is 10 hours behind Australian Eastern Time
- October 4 to December 31: Greenwich Mean Time is 11 hours behind Australian Eastern Time
Questions
What time is 9 AM AEST in GMT?
For most of the year, 9 AM Australian Eastern Time is 10 PM the day before Greenwich Mean Time. For part of the year it is 11 PM the day before, because of daylight saving time.
How many hours ahead or behind is GMT from AEST?
Greenwich Mean Time is 11 hours behind Australian Eastern Time for most of the year, and 10 hours behind for part of it, because the two change their clocks on different dates (or only one of them changes at all).
Does the AEST to GMT difference change?
Yes. It changes 2 times in 2026 because of daylight saving time.
About these time zones
AEST to GMT, hour by hour
| Australian Eastern Time | Greenwich Mean Time |
|---|---|
| 12 AM | 1 PM (previous day) |
| 1 AM | 2 PM (previous day) |
| 2 AM | 3 PM (previous day) |
| 3 AM | 4 PM (previous day) |
| 4 AM | 5 PM (previous day) |
| 5 AM | 6 PM (previous day) |
| 6 AM | 7 PM (previous day) |
| 7 AM | 8 PM (previous day) |
| 8 AM | 9 PM (previous day) |
| 9 AM | 10 PM (previous day) |
| 10 AM | 11 PM (previous day) |
| 11 AM | 12 AM |
| 12 PM | 1 AM |
| 1 PM | 2 AM |
| 2 PM | 3 AM |
| 3 PM | 4 AM |
| 4 PM | 5 AM |
| 5 PM | 6 AM |
| 6 PM | 7 AM |
| 7 PM | 8 AM |
| 8 PM | 9 AM |
| 9 PM | 10 AM |
| 10 PM | 11 AM |
| 11 PM | 12 PM |
Based on the clocks on Monday, October 12, 2026. Use the converter above for another date.