AEST to GMT converter: Sydney time to UK time

In 2026 London is 11 hours behind Sydney until 29 March, 10 hours behind from 29 March to 5 April, 9 hours behind from 5 April to 4 October, 10 hours behind from 4 to 25 October and 11 hours behind for the rest of the year, as Australia and the UK change their clocks on different dates.

Sydney12:00 PMSunday 11 Oct · AEDT

London2:00 AMSunday 11 Oct · BST

London is 10 h behind Sydney today.

Sydney

01234567891011121314151617181920212223

London

14151617181920212223012345678910111213

9 to 6 working hoursboth at workNo overlap. Nearest: 7 PM in Sydney is 09:00 in London

Your result

Enter your values to see the result.

Daylight saving: local time and fixed AEST and GMT

The converter starts with Sydney to London, using local clock rules. For the standard-time offsets all year, use the fixed AEST and GMT button.

These examples use noon on the dates shown. A converted date can be the previous or following day.

Starting date and time	Using local city rules	Using fixed AEST and GMT
2026-01-15 12:00	2026-01-15 01:00 (UTC+00:00)	2026-01-15 02:00
2026-07-15 12:00	2026-07-15 03:00 (UTC+01:00)	2026-07-15 02:00

12:00 PM Wednesday 15 Jul in Sydney is 3:00 AM Wednesday 15 Jul in London (BST, 9 h behind).

Why daylight saving conversions need a date explains skipped and repeated clock readings. The rules here come from the browser’s time zone data and can lag a government change.