Time Difference Between Sydney and London
As of 31 August 2026, London is 9 hours behind Sydney. That number is not constant. Over the course of a year, because of daylight saving changes, London, United Kingdom ranges from 11 hours behind to 9 hours behind relative to Sydney, Australia. The calculator below is always up to date.
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Sydney, Australia
08:34
Tue, Sep 1, 2026
UTC+10 · Australia/Sydney
London, United Kingdom
-9h23:34
Mon, Aug 31, 2026
UTC+1 · Europe/London
London is 9 hours behind Sydney.
When it is 08:34 in Sydney, it is already the previous day in London.
Time zone details
| Place | Local date | Time zone | UTC offset | Summer time |
|---|---|---|---|---|
| Sydney | Tuesday, September 1, 2026 | Australia/Sydney | UTC+10 | Not active now |
| London | Monday, August 31, 2026 | Europe/London | UTC+1 | Active now |
Hour by hour: Sydney to London
Every hour of today in Sydney and what it is in London. Highlighted rows fall inside London working hours (09:00–18:00).
| Sydney | London |
|---|---|
| 00:00 | 15:00prev day |
| 01:00 | 16:00prev day |
| 02:00 | 17:00prev day |
| 03:00 | 18:00prev day |
| 04:00 | 19:00prev day |
| 05:00 | 20:00prev day |
| 06:00 | 21:00prev day |
| 07:00 | 22:00prev day |
| 08:00 | 23:00prev day |
| 09:00 | 00:00 |
| 10:00 | 01:00 |
| 11:00 | 02:00 |
| Sydney | London |
|---|---|
| 12:00 | 03:00 |
| 13:00 | 04:00 |
| 14:00 | 05:00 |
| 15:00 | 06:00 |
| 16:00 | 07:00 |
| 17:00 | 08:00 |
| 18:00 | 09:00 |
| 19:00 | 10:00 |
| 20:00 | 11:00 |
| 21:00 | 12:00 |
| 22:00 | 13:00 |
| 23:00 | 14:00 |
Best time to call or meet
Overlapping working hours
No overlap
Standard working hours in Sydney and London never overlap. Someone has to start early or finish late — the calling window below is the practical compromise.
Reasonable calling hours
17:00–21:00 in Sydney (08:00–12:00 in London)
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, London is 10 hours behind Sydney — instead of 9 hours behind, 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, London is 11 hours behind Sydney — instead of 9 hours behind, 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.
Sydney and London: common questions
What is the time difference between Sydney and London?
As of 31 August 2026, London is 9 hours behind Sydney. The gap is not fixed: across the year, London ranges from 11 hours behind to 9 hours behind relative to Sydney, as clocks change. The calculator on this page always shows the difference for right now.
When it is 9:00 AM in Sydney, what time is it in London?
It is 12:00 AM in London, United Kingdom. Use the time field in the calculator above to check any other hour.
Is London ahead of or behind Sydney?
London is behind Sydney by 9 hours at the moment. In practical terms, the working day in London starts and ends later in Sydney terms.
Do Sydney and London observe daylight saving time?
Both Sydney and London change their clocks, but not on the same dates. That is why the gap is not fixed: across the year, London ranges from 11 hours behind to 9 hours behind relative to Sydney.
What is the best time to call London from Sydney?
Standard working hours in Sydney and London do not overlap at all, so one side has to take the call outside office hours. Early morning in Sydney or late evening is usually the least disruptive option.
Related comparisons
Local dates shown for Sydney, Australia (UTC+10) and London, United Kingdom (UTC+1) were generated on Monday, August 31, 2026 UTC and refresh in your browser.