AEDT to GMT Converter & Meeting Planner
Quick answer: 9:00 AM AEDT = 10:00 PM GMT (fixed +11:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Australian Eastern Daylight Time (AEDT) and Greenwich Mean Time (GMT)? You need to account for the standard time difference. Greenwich Mean Time is normally 11 hours behind Australian Eastern Daylight Time. Whether you are coordinating between teams in Sydney and Melbourne and London and Dublin, our live tool has you covered. Use our interactive overlap studio below to find the perfect waking hours for both regions, taking into account any seasonal Daylight Saving Time (DST) changes.
24-Hour Conversion Table
Quick reference: 12:00 AM AEDT = 1:00 PM GMT. The full 24-hour AEDT to GMT table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM AEDT = 4:00 AM GMT.
| AEDT Time | GMT Time |
|---|---|
| 12:00 AM (00:00) | 1:00 PM (13:00)-1 day |
| 1:00 AM (01:00) | 2:00 PM (14:00)-1 day |
| 2:00 AM (02:00) | 3:00 PM (15:00)-1 day |
| 3:00 AM (03:00) | 4:00 PM (16:00)-1 day |
| 4:00 AM (04:00) | 5:00 PM (17:00)-1 day |
| 5:00 AM (05:00) | 6:00 PM (18:00)-1 day |
| 6:00 AM (06:00) | 7:00 PM (19:00)-1 day |
| 7:00 AM (07:00) | 8:00 PM (20:00)-1 day |
| 8:00 AM (08:00) | 9:00 PM (21:00)-1 day |
| 9:00 AM (09:00) | 10:00 PM (22:00)-1 day |
| 10:00 AM (10:00) | 11:00 PM (23:00)-1 day |
| 11:00 AM (11:00) | 12:00 AM (00:00) |
| 12:00 PM (12:00) | 1:00 AM (01:00) |
| 1:00 PM (13:00) | 2:00 AM (02:00) |
| 2:00 PM (14:00) | 3:00 AM (03:00) |
| 3:00 PM (15:00) | 4:00 AM (04:00) |
| 4:00 PM (16:00) | 5:00 AM (05:00) |
| 5:00 PM (17:00) | 6:00 AM (06:00) |
| 6:00 PM (18:00) | 7:00 AM (07:00) |
| 7:00 PM (19:00) | 8:00 AM (08:00) |
| 8:00 PM (20:00) | 9:00 AM (09:00) |
| 9:00 PM (21:00) | 10:00 AM (10:00) |
| 10:00 PM (22:00) | 11:00 AM (11:00) |
| 11:00 PM (23:00) | 12:00 PM (12:00) |
Best time to call London from Sydney
For most work calls, compare the normal business day in Sydney (AEDT) with the business day in London (GMT). AEDT commonly covers Oceania, Eastern Australia, while GMT is mainly associated with Europe, Africa.
⚠️ Note: 2026-07-05 is not a normal workday in one or both regions based on their configured calendar. The overlap below should be treated as a reference, not a guaranteed office-hours window.
⚠️ There is no clean same-day business-hours overlap on 2026-07-05. A practical compromise is around 6:00 PM AEDT, which reaches 9:00 AM GMT near the start of their workday.
- DST Safety: AEDT or GMT may shift during Daylight Saving Time. Always confirm the converted time for your specific date.
- Australian Securities Exchange (ASX): 10:00-16:00 local time in Sydney.
- London Stock Exchange: 08:00-16:30 local time in London.
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Frequently Asked Questions
What is the time difference between AEDT and GMT?
During standard time, Greenwich Mean Time is 11 hours behind Australian Eastern Daylight Time.
When does AEDT start and end?
AEDT begins on the first Sunday in October at 02:00 local time, when clocks spring forward one hour from AEST (UTC+10) to AEDT (UTC+11). It ends on the first Sunday in April at 03:00 local time, when clocks fall back to AEST. In 2026, AEDT starts on October 4 and ends on April 5 — following the Southern Hemisphere summer calendar, which runs opposite to DST schedules in Europe and North America.
Is Brisbane on AEDT?
No — Queensland, including Brisbane, does not observe Daylight Saving Time and remains on AEST (UTC+10) year-round. During the AEDT period from October through April, Sydney and Melbourne advance to UTC+11 while Brisbane stays at UTC+10, creating a one-hour gap between cities that share nearly the same longitude and are otherwise in the same time zone for the other six months of the year.
What is the difference between GMT and BST?
GMT (Greenwich Mean Time) is the UK's standard winter offset at UTC+0, observed from the last Sunday in October through the last Sunday in March. BST (British Summer Time) is the daylight saving offset at UTC+1, applied each summer when clocks advance one hour.
Is GMT the same as UTC?
GMT and UTC share exactly the same numerical offset — both represent UTC+00:00 — but they are fundamentally different in nature. UTC is an atomic-clock-based international time standard used as the global reference, while GMT is a geographic time zone legally observed by specific countries including the United Kingdom and Ireland during winter months.