AEST to GMT Converter
Pick a date and an eastern Australian time to see the same moment in GMT. The converter knows when Sydney, Melbourne and Canberra are on daylight saving and when they are not.
GMTGreenwich Mean Time
––:––
Take a Sydney time, subtract 10 hours in the Australian winter or 11 hours while AEDT is in force, and you have GMT.
AEST and AEDT against GMT, hour by hour
| AEST time | AEDT · GMT | AEST · GMT |
|---|---|---|
| 12:00 AM | 1:00 PM−1 previous day | 2:00 PM−1 previous day |
| 1:00 AM | 2:00 PM−1 previous day | 3:00 PM−1 previous day |
| 2:00 AM | 3:00 PM−1 previous day | 4:00 PM−1 previous day |
| 3:00 AM | 4:00 PM−1 previous day | 5:00 PM−1 previous day |
| 4:00 AM | 5:00 PM−1 previous day | 6:00 PM−1 previous day |
| 5:00 AM | 6:00 PM−1 previous day | 7:00 PM−1 previous day |
| 6:00 AM | 7:00 PM−1 previous day | 8:00 PM−1 previous day |
| 7:00 AM | 8:00 PM−1 previous day | 9:00 PM−1 previous day |
| 8:00 AM | 9:00 PM−1 previous day | 10:00 PM−1 previous day |
| 9:00 AM | 10:00 PM−1 previous day | 11:00 PM−1 previous day |
| 10:00 AM | 11:00 PM−1 previous day | 12:00 AM |
| 11:00 AM | 12:00 AM | 1:00 AM |
| 12:00 PM | 1:00 AM | 2:00 AM |
| 1:00 PM | 2:00 AM | 3:00 AM |
| 2:00 PM | 3:00 AM | 4:00 AM |
| 3:00 PM | 4:00 AM | 5:00 AM |
| 4:00 PM | 5:00 AM | 6:00 AM |
| 5:00 PM | 6:00 AM | 7:00 AM |
| 6:00 PM | 7:00 AM | 8:00 AM |
| 7:00 PM | 8:00 AM | 9:00 AM |
| 8:00 PM | 9:00 AM | 10:00 AM |
| 9:00 PM | 10:00 AM | 11:00 AM |
| 10:00 PM | 11:00 AM | 12:00 PM |
| 11:00 PM | 12:00 PM | 1:00 PM |
Why only one side moves
GMT, as used here, is a fixed reference with no daylight saving: the same as UTC+0, the base of the IANA time zone database. All the movement comes from Australia. New South Wales, Victoria, the ACT and Tasmania put their clocks forward on the first Sunday in October and back on the first Sunday in April, according to the NSW Government.
Queensland does not take part, so Brisbane and the Gold Coast stay at UTC+10. If your contact is in Brisbane, the 10-hour answer holds every day of the year.
One more twist: Australia's daylight-saving season runs across the new year. A season that starts in October ends the following April, so the list below shows one AEDT stretch that begins in one year and finishes in the next.
- Jan 1, 2026 – Apr 5, 2026AEDT UTC+11 · GMT UTC+0Difference: −11 h
- Apr 5, 2026 – Oct 4, 2026AEST UTC+10 · GMT UTC+0Difference: −10 h
- Oct 4, 2026 – Apr 4, 2027AEDT UTC+11 · GMT UTC+0Difference: −11 h
- Apr 4, 2027 – Oct 3, 2027AEST UTC+10 · GMT UTC+0Difference: −10 h
- Oct 3, 2027 – Jan 1, 2028AEDT UTC+11 · GMT UTC+0Difference: −11 h
Offsets in 2026 – 2027, from the IANA time zone data in your browser's engine
GMT is not always London
Check which GMT people mean
Many people write GMT when they mean the time in London. From late March to late October the UK is on BST (UTC+1), so London is one hour ahead of the times on this page.
- For a meeting with someone in the UK, use the live clock for London.
- For flight logs, servers or broadcast schedules, fixed GMT or UTC is usually what is meant.
In practice, an 8:00 AM start in Sydney is 10:00 PM GMT the evening before, or 9:00 PM during AEDT. A 5:00 PM finish in Melbourne is 7:00 AM or 6:00 AM GMT the same day, which is why handovers between Australian and European teams often happen at the start of the European morning. The live Melbourne clock shows the current local time.
AEST to GMT questions
How many hours is AEST ahead of GMT?
AEST is exactly 10 hours ahead of GMT. From the first Sunday in October to the first Sunday in April, New South Wales and Victoria use AEDT, which is 11 hours ahead.
Is GMT the same as London time?
Only in the UK winter. From late March to late October London is on BST, one hour ahead of GMT. This page uses GMT as a fixed UTC+0 reference; the London clock page covers UK civil time.
What is 6:00 PM AEST in GMT?
It is 8:00 AM GMT the same day. During AEDT, 6:00 PM in Sydney is 7:00 AM GMT.
Does Queensland use AEDT?
No. Queensland keeps AEST all year, so Brisbane is always 10 hours ahead of GMT.