Convert GMT to AEST
Greenwich Mean Time (GMT) to Australian Eastern Time (AEST)
When it's 12:00 PM GMT, it's 11:00 PM in Sydney
On Apr 5 – Oct 3, 2026; Apr 4 – Oct 2, 2027: 10:00 PM in Sydney.
Interactive Converter
Pick any time and date to convert between GMT and AEST.
GMT to AEST Conversion Table
Full 24-hour comparison. Business hours (9 AM -- 6 PM) are highlighted.
| GMT (GMT) | Sydney (AEST) |
|---|---|
| 12:00 AM | 11:00 AM |
| 1:00 AM | 12:00 PM |
| 2:00 AM | 1:00 PM |
| 3:00 AM | 2:00 PM |
| 4:00 AM | 3:00 PM |
| 5:00 AM | 4:00 PM |
| 6:00 AM | 5:00 PM |
| 7:00 AM | 6:00 PM |
| 8:00 AM | 7:00 PM |
| 9:00 AM | 8:00 PM |
| 10:00 AM | 9:00 PM |
| 11:00 AM | 10:00 PM |
| 12:00 PM | 11:00 PM |
| 1:00 PM | 12:00 AM +1 day |
| 2:00 PM | 1:00 AM +1 day |
| 3:00 PM | 2:00 AM +1 day |
| 4:00 PM | 3:00 AM +1 day |
| 5:00 PM | 4:00 AM +1 day |
| 6:00 PM | 5:00 AM +1 day |
| 7:00 PM | 6:00 AM +1 day |
| 8:00 PM | 7:00 AM +1 day |
| 9:00 PM | 8:00 AM +1 day |
| 10:00 PM | 9:00 AM +1 day |
| 11:00 PM | 10:00 AM +1 day |
These times apply on all dates in 2026–2027 except:
- Apr 5 – Oct 3, 2026; Apr 4 – Oct 2, 2027: Sydney times are 1 hour earlier.
Best Meeting Window
Top meeting times for teams in GMT and AEST (9 AM -- 6 PM work hours, 1-hour meeting).
1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for GMT.
1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for GMT.
1 of 2 members within working hours. 1 in mid-day range (9 AM–5 PM). Outside work hours for Sydney.
These times apply on all dates in 2026–2027 except:
- Apr 5 – Oct 3, 2026; Apr 4 – Oct 2, 2027: Sydney times are 1 hour earlier.
Time Difference & DST
The GMT to AEST gap is +10h or +11h, depending on daylight saving time. The table lists each period.
| Dates | GMT | Sydney | Difference |
|---|---|---|---|
| Jan 1 – Apr 4, 2026 | UTC±0 | UTC+11 | +11h |
| Apr 5 – Oct 3, 2026 | UTC±0 | UTC+10 | +10h |
| Oct 4, 2026 – Apr 3, 2027 | UTC±0 | UTC+11 | +11h |
| Apr 4 – Oct 2, 2027 | UTC±0 | UTC+10 | +10h |
| Oct 3 – Dec 31, 2027 | UTC±0 | UTC+11 | +11h |
GMT does not use daylight saving time.
UK clocks use BST (UTC+1) from the last Sunday in March to the last Sunday in October.
Use the interactive converter for a specific date.
Major Cities
Greenwich Mean Time (GMT)
- GMT
Australian Eastern Time (AEST)
- Sydney
- Canberra
- Wollongong
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