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Time zonesLive · DST-aware

BST to AEST Converter

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

Quick presets

BST to AEST Converter

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

ToolFeather · Intl API

About converting BST to AEST

British Time (London) (London) and Australian Eastern Time (Sydney) 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 BST box (or tap a quick preset) and read the AEST 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.

BST vs AEST: the time difference through the year

The gap between BST and AEST changes during the year because they switch to and from daylight saving on different dates.

PeriodDifference
Oct 23, 2026 – Oct 24, 2026AEST 10 h ahead of BST
Oct 25, 2026 – Mar 27, 2027AEST 11 h ahead of BST
Mar 28, 2027 – Apr 3, 2027AEST 10 h ahead of BST
Apr 4, 2027 – Oct 2, 2027AEST 9 h ahead of BST
Oct 3, 2027 – Oct 23, 2027AEST 10 h ahead of BST

Daylight-saving changes in the next year

ZoneDateOffsetChange
BSTOct 25, 2026UTC+1 → UTC+0Clocks go back 1 hour
BSTMar 28, 2027UTC+0 → UTC+1Clocks go forward 1 hour
BSTOct 31, 2027UTC+1 → UTC+0Clocks go back 1 hour
AESTApr 4, 2027UTC+11 → UTC+10Clocks go back 1 hour
AESTOct 3, 2027UTC+10 → UTC+11Clocks go forward 1 hour

BST to AEST conversion table

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

Best time to meet

The two zones

BST · British Time (London)

UK time is GMT (UTC+0) in winter and British Summer Time (BST, UTC+1) from the last Sunday in March to the last Sunday in October. Ireland and Portugal follow the same switch dates.

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.

Frequently asked questions

6 answers
What is the time difference between BST and AEST?
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 British Time (London) and Australian Eastern Time, so the time you see is always right for right now.
How do I convert BST to AEST?
Enter a time in the BST box and the equivalent AEST 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 BST to AEST converter accurate with daylight saving?
Yes. It uses your browser's built-in time-zone database (the IANA zones behind London and Sydney), which tracks daylight-saving changes automatically, so the current times and difference are correct.
What time is it in Sydney right now?
The live clock above shows the current time in Sydney (AEST), updating every second, alongside BST.
Does the BST to AEST time difference change?
Yes. Over the next 12 months it is 10 h ahead or 11 h ahead or 9 h ahead, depending on the date — see the table of periods on this page.
What is a good meeting time for BST and AEST?
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.