AEST to GMT Converter & Meeting Planner
Quick answer: 9:00 AM AEST = 11:00 PM GMT (fixed +10:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Australian Eastern Standard Time (AEST) and Greenwich Mean Time (GMT)? You need to account for the standard time difference. Greenwich Mean Time is normally 10 hours behind Australian Eastern Standard 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 AEST = 2:00 PM GMT. The full 24-hour AEST to GMT table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM AEST = 5:00 AM GMT.
| AEST Time | GMT Time |
|---|---|
| 12:00 AM (00:00) | 2:00 PM (14:00)-1 day |
| 1:00 AM (01:00) | 3:00 PM (15:00)-1 day |
| 2:00 AM (02:00) | 4:00 PM (16:00)-1 day |
| 3:00 AM (03:00) | 5:00 PM (17:00)-1 day |
| 4:00 AM (04:00) | 6:00 PM (18:00)-1 day |
| 5:00 AM (05:00) | 7:00 PM (19:00)-1 day |
| 6:00 AM (06:00) | 8:00 PM (20:00)-1 day |
| 7:00 AM (07:00) | 9:00 PM (21:00)-1 day |
| 8:00 AM (08:00) | 10:00 PM (22:00)-1 day |
| 9:00 AM (09:00) | 11:00 PM (23:00)-1 day |
| 10:00 AM (10:00) | 12:00 AM (00:00) |
| 11:00 AM (11:00) | 1:00 AM (01:00) |
| 12:00 PM (12:00) | 2:00 AM (02:00) |
| 1:00 PM (13:00) | 3:00 AM (03:00) |
| 2:00 PM (14:00) | 4:00 AM (04:00) |
| 3:00 PM (15:00) | 5:00 AM (05:00) |
| 4:00 PM (16:00) | 6:00 AM (06:00) |
| 5:00 PM (17:00) | 7:00 AM (07:00) |
| 6:00 PM (18:00) | 8:00 AM (08:00) |
| 7:00 PM (19:00) | 9:00 AM (09:00) |
| 8:00 PM (20:00) | 10:00 AM (10:00) |
| 9:00 PM (21:00) | 11:00 AM (11:00) |
| 10:00 PM (22:00) | 12:00 PM (12:00) |
| 11:00 PM (23:00) | 1:00 PM (13:00) |
Best time to call London from Sydney
For most work calls, compare the normal business day in Sydney (AEST) with the business day in London (GMT). AEST commonly covers Oceania, 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 AEST, which reaches 9:00 AM GMT near the start of their workday.
- DST Safety: AEST 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 AEST and GMT?
During standard time, Greenwich Mean Time is 10 hours behind Australian Eastern Standard Time.
Does all of eastern Australia observe Daylight Saving Time?
No — eastern Australia is split on DST. New South Wales (Sydney), Victoria (Melbourne), Tasmania (Hobart), and the ACT (Canberra) advance their clocks to AEDT (UTC+11) each October, while Queensland (Brisbane) opts out entirely and remains on AEST (UTC+10) year-round. This means Sydney and Brisbane run on the same clock for only part of the year.
What is the difference between AEST and AEDT?
AEST (Australian Eastern Standard Time) is the UTC+10:00 offset observed during the Southern Hemisphere winter months, roughly April through October. AEDT (Australian Eastern Daylight Time) is the UTC+11:00 offset applied during the Southern Hemisphere summer when clocks spring forward in October, observed by New South Wales, Victoria, Tasmania, and the ACT.
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.