London to Sydney Time Difference
Sydney is 10 hours ahead of London. When it's 01:55:53 PM in London, it's 11:55:53 PM in Sydney.
How Many Hours Ahead Is Sydney From London?
Sydney is 10 hours ahead of London. So London is 10 hours behind Sydney looking the other way — the same gap, described from the other end.
In practice that means a working day in London starts when it is already 7:00 PM in Sydney. The gap is not fixed all year: it becomes 11 hours on Sunday, October 25, 2026, when London changes its clocks.
Best Time to Call London and Sydney
Standard 9-to-5 hours in London and Sydney never overlap, so someone has to take the call outside their working day. The most workable window is 7:00 AM to 12:00 PM in London, which is 5:00 PM to 10:00 PM in Sydney.
both at work London only Sydney only neither — hours shown along the strip are London local time.
Convert a Specific Time
Pick any date and time in London to see the exact equivalent in Sydney.
Common Times Converted
London time on the left, Sydney time on the right.
London to Sydney: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in London. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| London | Sydney | Working hours |
|---|---|---|
| 12:00 AM | 10:00 AM | Sydney only |
| 1:00 AM | 11:00 AM | Sydney only |
| 2:00 AM | 12:00 PM | Sydney only |
| 3:00 AM | 1:00 PM | Sydney only |
| 4:00 AM | 2:00 PM | Sydney only |
| 5:00 AM | 3:00 PM | Sydney only |
| 6:00 AM | 4:00 PM | Sydney only |
| 7:00 AM | 5:00 PM | — |
| 8:00 AM | 6:00 PM | — |
| 9:00 AM | 7:00 PM | London only |
| 10:00 AM | 8:00 PM | London only |
| 11:00 AM | 9:00 PM | London only |
| 12:00 PM | 10:00 PM | London only |
| 1:00 PM | 11:00 PM | London only |
| 2:00 PM | 12:00 AM next day | London only |
| 3:00 PM | 1:00 AM next day | London only |
| 4:00 PM | 2:00 AM next day | London only |
| 5:00 PM | 3:00 AM next day | — |
| 6:00 PM | 4:00 AM next day | — |
| 7:00 PM | 5:00 AM next day | — |
| 8:00 PM | 6:00 AM next day | — |
| 9:00 PM | 7:00 AM next day | — |
| 10:00 PM | 8:00 AM next day | — |
| 11:00 PM | 9:00 AM next day | Sydney only |
Understanding the London – Sydney Time Difference
London runs on Europe/London, currently BST (UTC+1:00). Sydney runs on Australia/Sydney, currently AEDT (UTC+11:00). The gap of 10 hours is simply the distance between those two offsets.
Both cities observe Daylight Saving Time, but they don't switch on the same date — so for a few weeks each year the gap between them is different again. The next shift is on Sunday, October 25, 2026, when London adjusts its clocks and the difference becomes 11 hours. Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United Kingdom · Daylight Saving Time in Australia.
London today
Sydney today
Frequently Asked Questions
What is the time difference between London and Sydney?
Sydney is currently 10 hours ahead of London. That gap becomes 11 hours on Sunday, October 25, 2026, when London changes its clocks.
How many hours ahead is Sydney from London?
Sydney is 10 hours ahead of London. Looking at it the other way, London is 10 hours behind Sydney.
What time is it in Sydney when it is 9:00 AM in London?
When it is 9:00 AM in London, it is 7:00 PM in Sydney.
Is Sydney ahead of or behind London?
Sydney is 10 hours ahead of London. Sydney reaches each point in the day first, so its working day is already finishing while London is still getting started.
What is the best time to call between London and Sydney?
Standard business hours in London and Sydney do not overlap at all, so one side has to step outside the 9-to-5. The most workable window is 7:00 AM to 12:00 PM in London, which is 5:00 PM to 10:00 PM in Sydney.
Does the time difference between London and Sydney change during the year?
Yes. Both cities observe Daylight Saving Time, and they do not always switch on the same date, so the gap between them shifts during the year. It changes to 11 hours on Sunday, October 25, 2026.
What time zones are London and Sydney in?
London uses the Europe/London time zone, currently BST (UTC+1:00). Sydney uses Australia/Sydney, currently AEDT (UTC+11:00).