United Kingdom
Australia
London to Sydney Time Difference
Sydney is 10 hours ahead of London
London vs Sydney — At a Glance
London to Sydney — Hour-by-Hour
About London and Sydney
London (population: 8.8M) is known for global finance, the City of London, Buckingham Palace, and the world's oldest underground railway. Sydney (population: 5.3M) is known for the Opera House, Harbour Bridge, Australia's financial center, and surfing culture.
Business Hours Overlap
London and Sydney are both global financial centers. When London's market closes, Sydney's is already open, creating a relay pattern common in 24-hour trading.
Calling Between Cities
With 10 hours between London (+44) and Sydney (+61), finding a mutually convenient calling time is tricky. Consider scheduling calls in advance rather than calling spontaneously.
Currency
London uses GBP while Sydney uses AUD. Check current exchange rates before making payments or transferring funds between the two cities.
Language
London and Sydney share English as a common language, which simplifies business communication.
Use our world clock tool to compare London and Sydney visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between London and Sydney?
Sydney, Australia is 10 hours ahead of London, United Kingdom. London is in the Europe/London timezone (UTC+1) and Sydney is in the Australia/Sydney timezone (UTC+11).
When it's noon in London, what time is it in Sydney?
When it's 12:00 PM (noon) in London, it's 10:00 PM in Sydney.
What is the best time to call Sydney from London?
The best time to call Sydney from London is during the overlapping business hours. When it's 9 AM in London, it's 7:00 PM in Sydney. Aim for late morning to early afternoon in London for the best chance of reaching someone during working hours.
What currency does Sydney use?
Sydney, Australia uses AUD. London uses GBP. You will need to check the current exchange rate for transactions between the two.
What language is spoken in Sydney?
The primary language in Sydney is English. London also speaks English, making communication easier.
How do I dial Sydney from London?
To call Sydney from London, dial your international access code followed by +61 and the local number. London uses country code +44 and Sydney uses +61.
