Time Difference Between London and Sydney
As of 31 August 2026, Sydney is 9 hours ahead of London. That number is not constant. Over the course of a year, because of daylight saving changes, Sydney, Australia ranges from 9 hours ahead to 11 hours ahead relative to London, United Kingdom. The calculator below is always up to date.
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London, United Kingdom
23:34
Mon, Aug 31, 2026
UTC+1 · Europe/London
Sydney, Australia
+9h08:34
Tue, Sep 1, 2026
UTC+10 · Australia/Sydney
Sydney is 9 hours ahead of London.
When it is 23:34 in London, it is already the next day in Sydney.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| London | Monday, August 31, 2026 | Europe/London | UTC+1 | Active now |
| Sydney | Tuesday, September 1, 2026 | Australia/Sydney | UTC+10 | Not active now |
Hour by hour: London to Sydney
Every hour of today in London and what it is in Sydney. Highlighted rows fall inside Sydney working hours (09:00–18:00).
| London | Sydney |
|---|---|
| 00:00 | 09:00 |
| 01:00 | 10:00 |
| 02:00 | 11:00 |
| 03:00 | 12:00 |
| 04:00 | 13:00 |
| 05:00 | 14:00 |
| 06:00 | 15:00 |
| 07:00 | 16:00 |
| 08:00 | 17:00 |
| 09:00 | 18:00 |
| 10:00 | 19:00 |
| 11:00 | 20:00 |
| London | Sydney |
|---|---|
| 12:00 | 21:00 |
| 13:00 | 22:00 |
| 14:00 | 23:00 |
| 15:00 | 00:00next day |
| 16:00 | 01:00next day |
| 17:00 | 02:00next day |
| 18:00 | 03:00next day |
| 19:00 | 04:00next day |
| 20:00 | 05:00next day |
| 21:00 | 06:00next day |
| 22:00 | 07:00next day |
| 23:00 | 08:00next day |
Best time to call or meet
Overlapping working hours
No overlap
Standard working hours in London and Sydney never overlap. Someone has to start early or finish late — the calling window below is the practical compromise.
Reasonable calling hours
08:00–12:00 in London (17:00–21:00 in Sydney)
Both people are awake and available between 08:00 and 21:00 local time during this window.
When this difference changes
Sydney puts its clocks forward on Sunday, October 4, 2026
The local offset moves from UTC+10 to UTC+11. After that date, Sydney is 10 hours ahead of London — instead of 9 hours ahead, as it is today.
London puts its clocks back on Sunday, October 25, 2026
The local offset moves from UTC+1 to UTC. After that date, Sydney is 11 hours ahead of London — instead of 9 hours ahead, as it is today.
Planning something with more than two places?
Adding a third city usually kills the obvious answer. The Meeting Time Finder takes up to five cities at once and shows only the hours that work for everybody.
London and Sydney: common questions
What is the time difference between London and Sydney?
As of 31 August 2026, Sydney is 9 hours ahead of London. The gap is not fixed: across the year, Sydney ranges from 9 hours ahead to 11 hours ahead relative to London, as clocks change. The calculator on this page always shows the difference for right now.
When it is 9:00 AM in London, what time is it in Sydney?
It is 06:00 PM in Sydney, Australia. Use the time field in the calculator above to check any other hour.
Is Sydney ahead of or behind London?
Sydney is ahead of London by 9 hours at the moment. In practical terms, the working day in Sydney starts and ends earlier in London terms.
Do London and Sydney observe daylight saving time?
Both London and Sydney change their clocks, but not on the same dates. That is why the gap is not fixed: across the year, Sydney ranges from 9 hours ahead to 11 hours ahead relative to London.
What is the best time to call Sydney from London?
Standard working hours in London and Sydney do not overlap at all, so one side has to take the call outside office hours. Early morning in London or late evening is usually the least disruptive option.
Related comparisons
Local dates shown for London, United Kingdom (UTC+1) and Sydney, Australia (UTC+10) were generated on Monday, August 31, 2026 UTC and refresh in your browser.