GMT to AEST Converter
Convert time between Greenwich Mean Time (GMT) and Australian Eastern Time (AEST/AEDT).
Convert a specific time
- IndiaIST, UTC+5:30
- Eastern Time – New YorkEDT, UTC-4
- Central Time – ChicagoCDT, UTC-5
- Mountain Time – DenverMDT, UTC-6
- Arizona – PhoenixMST, UTC-7
- Pacific Time – Los AngelesPDT, UTC-7
- Mexico CityCST, UTC-6
- Saskatchewan – ReginaCST, UTC-6
- UTC / GMTUTC, UTC+0
- United Kingdom – LondonBST, UTC+1
- Central Europe – Paris, BerlinCEST, UTC+2
- Gulf – DubaiGST, UTC+4
- SingaporeSGT, UTC+8
- Japan – TokyoJST, UTC+9
- Australia Eastern – SydneyAEST, UTC+10
- EST (always UTC-5)Fixed offset, no DST
- CST (always UTC-6)Fixed offset, no DST
- MST (always UTC-7)Fixed offset, no DST
- PST (always UTC-8)Fixed offset, no DST
- IndiaIST, UTC+5:30
- Eastern Time – New YorkEDT, UTC-4
- Central Time – ChicagoCDT, UTC-5
- Mountain Time – DenverMDT, UTC-6
- Arizona – PhoenixMST, UTC-7
- Pacific Time – Los AngelesPDT, UTC-7
- Mexico CityCST, UTC-6
- Saskatchewan – ReginaCST, UTC-6
- UTC / GMTUTC, UTC+0
- United Kingdom – LondonBST, UTC+1
- Central Europe – Paris, BerlinCEST, UTC+2
- Gulf – DubaiGST, UTC+4
- SingaporeSGT, UTC+8
- Japan – TokyoJST, UTC+9
- Australia Eastern – SydneyAEST, UTC+10
- EST (always UTC-5)Fixed offset, no DST
- CST (always UTC-6)Fixed offset, no DST
- MST (always UTC-7)Fixed offset, no DST
- PST (always UTC-8)Fixed offset, no DST
Time Difference
Greenwich Mean Time is 10 hours behind Australian Eastern Time right now.
- Now until Oct 4, 2026: Greenwich Mean Time is 10 hours behind Australian Eastern Time (UTC → AEST).
- Oct 4, 2026 – Apr 4, 2027: Greenwich Mean Time is 11 hours behind Australian Eastern Time (UTC → AEDT).
- From Apr 4, 2027: Greenwich Mean Time is 10 hours behind Australian Eastern Time (UTC → AEST).
Australian Eastern Time is on AEST right now
Best time to call
Convenient overlapping hours on Sunday, September 20, 2026.
| GMT (Greenwich Mean Time) | AEST (Australian Eastern Time) |
|---|---|
| 9:00 AM | 7:00 PM |
| 10:00 AM | 8:00 PM |
| 11:00 AM | 9:00 PM |
No 9 AM–5 PM overlap: suggestions are within working hours on one side and between 7 AM and 10 PM on the other.
Convert another time zone Plan a meeting across GMT and AESTGMT to AEST conversion table
For Saturday, September 19, 2026 in Greenwich Mean Time.
| UTC | AEST |
|---|---|
| 12:00 AM | 10:00 AM |
| 1:00 AM | 11:00 AM |
| 2:00 AM | 12:00 PM |
| 3:00 AM | 1:00 PM |
| 4:00 AM | 2:00 PM |
| 5:00 AM | 3:00 PM |
| 6:00 AM | 4:00 PM |
| 7:00 AM | 5:00 PM |
| 8:00 AM | 6:00 PM |
| 9:00 AM | 7:00 PM |
| 10:00 AM | 8:00 PM |
| 11:00 AM | 9:00 PM |
| 12:00 PM | 10:00 PM |
| 1:00 PM | 11:00 PM |
| 2:00 PM | 12:00 AM(next day) |
| 3:00 PM | 1:00 AM(next day) |
| 4:00 PM | 2:00 AM(next day) |
| 5:00 PM | 3:00 AM(next day) |
| 6:00 PM | 4:00 AM(next day) |
| 7:00 PM | 5:00 AM(next day) |
| 8:00 PM | 6:00 AM(next day) |
| 9:00 PM | 7:00 AM(next day) |
| 10:00 PM | 8:00 AM(next day) |
| 11:00 PM | 9:00 AM(next day) |
About these time zones
Greenwich Mean Time (GMT)
Greenwich Mean Time (GMT) is the time at UTC+0. GMT and UTC show the same clock time; UTC is the scientific standard, while GMT is a time zone name. The United Kingdom and Ireland use GMT only in winter: in summer the UK switches to British Summer Time (BST, UTC+1) and Ireland to Irish Standard Time (IST, UTC+1).
Australian Eastern Standard Time (AEST)
Australian Eastern Standard Time (AEST) is UTC+10. New South Wales, Victoria, Tasmania and the ACT use AEST in winter and Australian Eastern Daylight Time (AEDT, UTC+11) from the first Sunday in October to the first Sunday in April. Queensland stays on AEST all year.
GMT to AEST FAQs
What time is it in AEST when it is 9 AM GMT?
On Saturday, September 19, 2026, 9:00 AM UTC is 7:00 PM AEST in Australian Eastern Time.
How many hours ahead is GMT from AEST?
It depends on the time of year because of daylight saving time. Now until Oct 4, 2026: Greenwich Mean Time is 10 hours behind Australian Eastern Time (UTC → AEST). Oct 4, 2026 – Apr 4, 2027: Greenwich Mean Time is 11 hours behind Australian Eastern Time (UTC → AEDT).
Should I use AEST or AEDT?
Australian Eastern Time is on AEST (UTC+10) on Sunday, September 20, 2026. Many people write “AEST” all year, but strictly AEST means Australian Eastern Standard Time (always UTC+10). This converter follows the real local time in Australian Eastern Time, including daylight saving time.
What is the best time for a call between GMT and AEST?
On Sunday, September 20, 2026, good options are 9:00 AM UTC (7:00 PM AEST), 10:00 AM UTC (8:00 PM AEST), 11:00 AM UTC (9:00 PM AEST). There is no overlap of 9 AM–5 PM working hours, so these fall early or late for one side.
Does GMT change for daylight saving time?
No. GMT stays at UTC+0 all year.
Does AEST change for daylight saving time?
The region changes: Australian Eastern Time switches between AEST and AEDT, so conversions depend on the date. AEST itself always means UTC+10.