United States
Australia
San Francisco to Sydney Time Difference
Sydney is 18 hours ahead of San Francisco
San Francisco vs Sydney — At a Glance
San Francisco to Sydney — Hour-by-Hour
About San Francisco and Sydney
San Francisco (population: 0.87M) is known for Silicon Valley, the Golden Gate Bridge, venture capital, and the global tech industry. Sydney (population: 5.3M) is known for the Opera House, Harbour Bridge, Australia's financial center, and surfing culture.
Business Hours Overlap
The 18-hour gap means San Francisco and Sydney have almost no standard-hours overlap. Early morning calls from San Francisco or late evening calls from Sydney are the most practical options.
Calling Between Cities
With 18 hours between San Francisco (+1) and Sydney (+61), finding a mutually convenient calling time is tricky. Consider scheduling calls in advance rather than calling spontaneously.
Currency
San Francisco uses USD while Sydney uses AUD. Check current exchange rates before making payments or transferring funds between the two cities.
Language
San Francisco and Sydney share English as a common language, which simplifies business communication.
Use our world clock tool to compare San Francisco and Sydney visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between San Francisco and Sydney?
Sydney, Australia is 18 hours ahead of San Francisco, United States. San Francisco is in the America/Los Angeles timezone (UTC-7) and Sydney is in the Australia/Sydney timezone (UTC+11).
When it's noon in San Francisco, what time is it in Sydney?
When it's 12:00 PM (noon) in San Francisco, it's 6:00 AM in Sydney.
What is the best time to call Sydney from San Francisco?
The best time to call Sydney from San Francisco is during the overlapping business hours. When it's 9 AM in San Francisco, it's 3:00 AM in Sydney. Aim for late morning to early afternoon in San Francisco for the best chance of reaching someone during working hours.
What currency does Sydney use?
Sydney, Australia uses AUD. San Francisco uses USD. 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. San Francisco also speaks English, making communication easier.
How do I dial Sydney from San Francisco?
To call Sydney from San Francisco, dial your international access code followed by +61 and the local number. San Francisco uses country code +1 and Sydney uses +61.
