London and Sydney: time difference and best meeting times
Sydney is 9 hours ahead of London for most of 2026. With a 9:00 to 17:00 working day in both places, the two cities share no working hours at any time of year, so every call means someone starts early or finishes late.
Shared working hours
The table assumes a working day of 9:00 to 17:00 in both cities. Times are local to each city. January and July show the two ends of the year, because daylight saving changes the picture.
| Season | Time difference | Shared hours | Shared window in London | Shared window in Sydney |
|---|---|---|---|---|
| January (15 January) | 11 hours | None | No shared hours | No shared hours |
| July (15 July) | 9 hours | None | No shared hours | No shared hours |
Because there is no shared window, the usual advice is to keep live calls for decisions that really need them and move everything else to written updates. When a call is unavoidable, the least awkward one-hour slot is 08:00 to 09:00 in London, which is 17:00 to 18:00 in Sydney. The worst-placed person is about 1 hour outside their 9:00 to 17:00 day. Rotate the awkward slot between the two sites so the same people do not always pay for it.
With a longer day, 08:00 to 18:00
If people on both sides can start an hour earlier and finish an hour later, the shared time becomes none in January and 1 hour in July. In July it is 08:00 to 09:00 in London, which is 17:00 to 18:00 in Sydney.
Plan a meeting for London and Sydney
How the difference changes in 2026
| Dates | Difference |
|---|---|
| 1 January to 28 March | Sydney is 11 hours ahead of London |
| 29 March to 4 April | Sydney is 10 hours ahead of London |
| 5 April to 3 October | Sydney is 9 hours ahead of London |
| 4 October to 24 October | Sydney is 10 hours ahead of London |
| 25 October to 31 December | Sydney is 11 hours ahead of London |
The gap between London and Sydney is not constant. United Kingdom and Australia do not move their clocks on the same dates, so the difference changes 4 times in 2026. A meeting that sits comfortably in the shared window for part of the year can land outside it for a few weeks. Check the table above whenever you set a recurring meeting that spans a change.
Converting times between London and Sydney
Find a time in London in the first column to see what it is in Sydney in January and in July.
| London | Sydney in January | Sydney in July |
|---|---|---|
| 07:00 | 18:00 | 16:00 |
| 08:00 | 19:00 | 17:00 |
| 09:00 | 20:00 | 18:00 |
| 10:00 | 21:00 | 19:00 |
| 11:00 | 22:00 | 20:00 |
| 12:00 | 23:00 | 21:00 |
| 13:00 | 00:00 (next day) | 22:00 |
| 14:00 | 01:00 (next day) | 23:00 |
| 15:00 | 02:00 (next day) | 00:00 (next day) |
| 16:00 | 03:00 (next day) | 01:00 (next day) |
| 17:00 | 04:00 (next day) | 02:00 (next day) |
| 18:00 | 05:00 (next day) | 03:00 (next day) |
| 19:00 | 06:00 (next day) | 04:00 (next day) |
Tips for teams in London and Sydney
- Name both cities in the invitation, for example "08:00 to 09:00 London / 17:00 to 18:00 Sydney".
- Check recurring meetings when clocks change. The gap is 11 hours instead of 9 hours for part of the year, so the shared window moves.
- Rotate the awkward hour between the two sites, and keep live calls for decisions.
Not the right pair? Compare up to four cities in the planner, or see our guide on cutting the cost of meetings.
Questions people ask
What is the time difference between London and Sydney?
Sydney is 9 hours ahead of London for most of 2026. It changes in some weeks because the two places change clocks on different dates: 1 January to 28 March, sydney is 11 hours ahead of london; 29 March to 4 April, sydney is 10 hours ahead of london; 5 April to 3 October, sydney is 9 hours ahead of london; 4 October to 24 October, sydney is 10 hours ahead of london; 25 October to 31 December, sydney is 11 hours ahead of london.
What time is it in Sydney when it is 9:00 in London?
In January it is 20:00 in Sydney. In July it is 18:00.
Do London and Sydney have working hours in common?
Not on a 9:00 to 17:00 day. The two cities have no shared working hours, so someone has to work outside their normal day for a live call.
Do London and Sydney change their clocks on the same day?
No. The difference between them takes 3 different values during 2026, so there are weeks when the gap is different from the rest of the year.
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