London--:--Now
+9h
Sydney--:--Now
Time difference between London and Sydney
Sydney is 9 to 11 hours ahead of London, depending on the time of year. When it's noon in London, it's 21:00, 22:00 or 23:00 in Sydney.
These clocks are live, and the difference shown is today's, daylight saving included.
Times side by side
| London | Sydney | Time of day |
|---|---|---|
| 08:00 | 17:00 | Afternoon in Sydney |
| 09:00 | 18:00 | Evening in Sydney |
| 12:00 | 21:00 | Dusk in Sydney |
| 15:00 | 00:00 next day | Night in Sydney |
| 17:00 | 02:00 next day | Night in Sydney |
| 18:00 | 03:00 next day | Night in Sydney |
| 21:00 | 06:00 next day | Dawn in Sydney |
The gap changes with the seasons, so this table uses today's.
Best time to call
When the gap is 9 hours (Apr 4 to Oct 2), working hours (9:00 to 17:00) don't overlap, but both cities are awake from 07:00 to 13:00 in London, which is 16:00 to 22:00 in Sydney, so one of you will be calling early or late. When the gap is 10 hours (Mar 28 to Apr 3, Oct 3 to Oct 30), working hours (9:00 to 17:00) don't overlap, but both cities are awake from 07:00 to 12:00 in London, which is 17:00 to 22:00 in Sydney, so one of you will be calling early or late. When the gap is 11 hours (Jan 1 to Mar 27, Oct 31 to Dec 31), working hours (9:00 to 17:00) don't overlap, but both cities are awake from 07:00 to 11:00 in London, which is 18:00 to 22:00 in Sydney, so one of you will be calling early or late.
Daylight saving
London and Sydney don't change their clocks together, so the gap shifts through the year. In 2027 the gap is 9 hours from Apr 4 to Oct 2; 10 hours from Mar 28 to Apr 3, Oct 3 to Oct 30; 11 hours from Jan 1 to Mar 27, Oct 31 to Dec 31.
Questions
What is the time difference between London and Sydney?
Sydney is 9 to 11 hours ahead of London, depending on the time of year. When it's noon in London, it's 21:00, 22:00 or 23:00 in Sydney.
Does daylight saving change the time difference between London and Sydney?
London and Sydney don't change their clocks together, so the gap shifts through the year. In 2027 the gap is 9 hours from Apr 4 to Oct 2; 10 hours from Mar 28 to Apr 3, Oct 3 to Oct 30; 11 hours from Jan 1 to Mar 27, Oct 31 to Dec 31.
What's the best time for a call between London and Sydney?
When the gap is 9 hours (Apr 4 to Oct 2), working hours (9:00 to 17:00) don't overlap, but both cities are awake from 07:00 to 13:00 in London, which is 16:00 to 22:00 in Sydney, so one of you will be calling early or late. When the gap is 10 hours (Mar 28 to Apr 3, Oct 3 to Oct 30), working hours (9:00 to 17:00) don't overlap, but both cities are awake from 07:00 to 12:00 in London, which is 17:00 to 22:00 in Sydney, so one of you will be calling early or late. When the gap is 11 hours (Jan 1 to Mar 27, Oct 31 to Dec 31), working hours (9:00 to 17:00) don't overlap, but both cities are awake from 07:00 to 11:00 in London, which is 18:00 to 22:00 in Sydney, so one of you will be calling early or late.
Keep both clocks on your Home Screen
Timo puts both cities side by side with the difference already worked out, colours each one by its time of day, and gives you a dial to find a time that suits you both. Free, with no ads and no account.
