London, United Kingdom Sydney, Australia

London is in the BST timezone (UTC+1) and Sydney is in the AEST timezone (UTC+10). The time difference between them is 9 hours.

Use the timeline above to find overlapping business hours between London and Sydney. The "Best time to meet" card highlights the window where both cities are within working hours (9 AM – 6 PM local time).

Both London and Sydney observe Daylight Saving Time, but their transitions may happen on different dates, which can temporarily change the time difference by ±1 hour.

Click the pencil icon next to the London clock and type any time. The Sydney clock will update instantly, showing the exact corresponding time. You can also pick a date to account for DST changes.