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AEST to GMT Converter

See the current time in AEST (Sydney) and GMT (Greenwich) side by side, the exact time difference right now, and convert any time between the two zones.

Quick presets

AEST to GMT Converter

AEST
Sydney
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GMT
Greenwich
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Uses your browser's built-in, DST-aware time-zone data.

ToolFeather · Intl API

About converting AEST to GMT

Australian Eastern Time (Sydney) and Greenwich Mean Time (Greenwich) are in different time zones, so a meeting, call or stream that's convenient in one may be early or late in the other. The clocks above update live and account for daylight saving automatically, so the time difference you see is the real one for today — not a fixed number that goes stale twice a year.

To plan across the two, type a time into the AEST box (or tap a quick preset) and read the GMT equivalent, including a "next day" or "previous day" note when the conversion crosses midnight. For any other pair of zones or cities, use the full timezone converter.

AEST vs GMT: the time difference through the year

The gap between AEST and GMT changes during the year because only one of them uses daylight saving.

PeriodDifference
Oct 23, 2026 – Apr 3, 2027GMT 11 h behind AEST
Apr 4, 2027 – Oct 2, 2027GMT 10 h behind AEST
Oct 3, 2027 – Oct 23, 2027GMT 11 h behind AEST

Daylight-saving changes in the next year

ZoneDateOffsetChange
AESTApr 4, 2027UTC+11 → UTC+10Clocks go back 1 hour
AESTOct 3, 2027UTC+10 → UTC+11Clocks go forward 1 hour

AEST to GMT conversion table

AESTGMT (when 11 h behind)GMT (when 10 h behind)
12:00 AM1:00 PM (previous day)2:00 PM (previous day)
1:00 AM2:00 PM (previous day)3:00 PM (previous day)
2:00 AM3:00 PM (previous day)4:00 PM (previous day)
3:00 AM4:00 PM (previous day)5:00 PM (previous day)
4:00 AM5:00 PM (previous day)6:00 PM (previous day)
5:00 AM6:00 PM (previous day)7:00 PM (previous day)
6:00 AM7:00 PM (previous day)8:00 PM (previous day)
7:00 AM8:00 PM (previous day)9:00 PM (previous day)
8:00 AM9:00 PM (previous day)10:00 PM (previous day)
9:00 AM10:00 PM (previous day)11:00 PM (previous day)
10:00 AM11:00 PM (previous day)12:00 AM
11:00 AM12:00 AM1:00 AM
12:00 PM1:00 AM2:00 AM
1:00 PM2:00 AM3:00 AM
2:00 PM3:00 AM4:00 AM
3:00 PM4:00 AM5:00 AM
4:00 PM5:00 AM6:00 AM
5:00 PM6:00 AM7:00 AM
6:00 PM7:00 AM8:00 AM
7:00 PM8:00 AM9:00 AM
8:00 PM9:00 AM10:00 AM
9:00 PM10:00 AM11:00 AM
10:00 PM11:00 AM12:00 PM
11:00 PM12:00 PM1:00 PM

Best time to meet

The two zones

AEST · Australian Eastern Time

Sydney is on AEST (UTC+10) from April to October and on daylight-saving AEDT (UTC+11) from the first Sunday in October to the first Sunday in April. Queensland (Brisbane) stays on AEST all year.

GMT · Greenwich Mean Time

Greenwich Mean Time is UTC+0 all year. It is the base for world time; the UK uses GMT only in winter and switches to BST in summer.

Frequently asked questions

6 answers
What is the time difference between AEST and GMT?
It's shown live at the top of this page (and it can change with daylight saving). The converter uses the current, DST-aware difference between Australian Eastern Time and Greenwich Mean Time, so the time you see is always right for right now.
How do I convert AEST to GMT?
Enter a time in the AEST box and the equivalent GMT time appears instantly, adjusted for the current offset between the two zones — including a note if it lands on the previous or next day.
Is this AEST to GMT converter accurate with daylight saving?
Yes. It uses your browser's built-in time-zone database (the IANA zones behind Sydney and Greenwich), which tracks daylight-saving changes automatically, so the current times and difference are correct.
What time is it in Greenwich right now?
The live clock above shows the current time in Greenwich (GMT), updating every second, alongside AEST.
Does the AEST to GMT time difference change?
Yes. Over the next 12 months it is 11 h behind or 10 h behind, depending on the date — see the table of periods on this page.
What is a good meeting time for AEST and GMT?
Standard 9-to-5 office hours don't overlap; early morning in one zone and evening in the other is the usual compromise — see the table on this page.