GMT to AEST
On Oct 23, 2026, Australian Eastern Time is 10 hours ahead of UK time: 9:00 AM BST is 7:00 PM AEDT. The gap changes during the year because of daylight saving time; the dates are below.
AEST vs GMT over the next 12 months
| Period | AEST is | Example |
|---|---|---|
| Oct 23, 2026 to Oct 25, 2026 | 10 hours ahead | 9:00 AM BST = 7:00 PM AEDT |
| Oct 25, 2026 to Mar 28, 2027 | 11 hours ahead | 9:00 AM GMT = 8:00 PM AEDT |
| Mar 28, 2027 to Apr 3, 2027 | 10 hours ahead | 9:00 AM BST = 7:00 PM AEDT |
| Apr 3, 2027 to Oct 2, 2027 | 9 hours ahead | 9:00 AM BST = 6:00 PM AEST |
| Oct 2, 2027 onwards | 10 hours ahead | 9:00 AM BST = 7:00 PM AEDT |
GMT to AEST conversion table
Every hour of a weekday around Oct 23, 2026, in both zones.
| UK time | Australian Eastern Time |
|---|---|
| 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 (next day) |
| 2:00 PM | 1:00 AM (next day) |
| 3:00 PM | 2:00 AM (next day) |
| 4:00 PM | 3:00 AM (next day) |
| 5:00 PM | 4:00 AM (next day) |
| 6:00 PM | 5:00 AM (next day) |
| 7:00 PM | 6:00 AM (next day) |
| 8:00 PM | 7:00 AM (next day) |
| 9:00 PM | 8:00 AM (next day) |
| 10:00 PM | 9:00 AM (next day) |
| 11:00 PM | 10:00 AM (next day) |
Best time for a meeting
There is no 9-to-5 overlap; within an 8 AM–8 PM day the zones overlap for 1 hour on a weekday: 8:00 AM–9:00 AM GMT, which is 7:00 PM–8:00 PM AEDT.
Comparing more than two places? The meeting planner lines up working hours for up to six cities.
Daylight saving time
UK time (GMT/BST)
- Oct 25, 2026: clocks go back 1 hour at 2:00 AM (UTC+1 → UTC±0)
- Mar 28, 2027: clocks go forward 1 hour at 1:00 AM (UTC±0 → UTC+1)
Australian Eastern Time (AEST/AEDT)
- Apr 4, 2027: clocks go back 1 hour at 3:00 AM (UTC+11 → UTC+10)
- Oct 3, 2027: clocks go forward 1 hour at 2:00 AM (UTC+10 → UTC+11)
Where these clocks are used
- UK time (GMT/BST): London, Edinburgh, Dublin and Lisbon keep the same clock. IANA zone
Europe/London. - Australian Eastern Time (AEST/AEDT): Sydney, Melbourne, Canberra (Brisbane stays on AEST all year). IANA zone
Australia/Sydney.
Questions
What time is it in AEST when it is 9 AM GMT?
On Oct 23, 2026, 9:00 AM BST is 7:00 PM AEDT. On other dates the answer can shift by an hour because of daylight saving time; the table of periods on this page gives each one.
How many hours ahead of GMT is AEST?
It depends on the date. Oct 23, 2026 to Oct 25, 2026: AEST is 10 hours ahead. Oct 25, 2026 to Mar 28, 2027: AEST is 11 hours ahead. Mar 28, 2027 to Apr 3, 2027: AEST is 10 hours ahead. Apr 3, 2027 to Oct 2, 2027: AEST is 9 hours ahead. Oct 2, 2027 onwards: AEST is 10 hours ahead.
Do GMT and AEST observe daylight saving time?
UK time switches to BST (UTC+1) in summer and back to GMT (UTC±0) in winter. Australian Eastern Time switches to AEDT (UTC+11) in summer and back to AEST (UTC+10) in winter.
What is the best time for a meeting between GMT and AEST?
There is no 9-to-5 overlap; within an 8 AM–8 PM day the zones overlap for 1 hour on a weekday: 8:00 AM–9:00 AM GMT, which is 7:00 PM–8:00 PM AEDT.
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Related conversions
- AEST to GMT (reverse)
- EST to AEST
- CST to AEST
- MST to AEST
- PST to AEST
- UTC to AEST
- GMT to EST
- GMT to CST
- GMT to MST
- GMT to PST
- GMT to UTC
- GMT to CET
- All time zones
Computed from the IANA time zone database on Oct 23, 2026. Live clocks and the converter use your browser's copy of the same data.