United States
Australia
Chicago to Sydney Time Difference
Sydney is 16 hours ahead of Chicago
Chicago vs Sydney — At a Glance
Chicago to Sydney — Hour-by-Hour
About Chicago and Sydney
Chicago (population: 2.7M) is known for commodities trading, deep-dish pizza, architecture, and the Chicago Board of Trade. Sydney (population: 5.3M) is known for the Opera House, Harbour Bridge, Australia's financial center, and surfing culture.
Business Hours Overlap
Chicago and Sydney are both global financial centers. When Chicago's market closes, Sydney's is already open, creating a relay pattern common in 24-hour trading.
Calling Between Cities
With 16 hours between Chicago (+1) and Sydney (+61), finding a mutually convenient calling time is tricky. Consider scheduling calls in advance rather than calling spontaneously.
Currency
Chicago uses USD while Sydney uses AUD. Check current exchange rates before making payments or transferring funds between the two cities.
Language
Chicago and Sydney share English as a common language, which simplifies business communication.
Use our world clock tool to compare Chicago and Sydney visually, or browse more timezone conversions.
Frequently Asked Questions
What is the time difference between Chicago and Sydney?
Sydney, Australia is 16 hours ahead of Chicago, United States. Chicago is in the America/Chicago timezone (UTC-5) and Sydney is in the Australia/Sydney timezone (UTC+11).
When it's noon in Chicago, what time is it in Sydney?
When it's 12:00 PM (noon) in Chicago, it's 4:00 AM in Sydney.
What is the best time to call Sydney from Chicago?
The best time to call Sydney from Chicago is during the overlapping business hours. When it's 9 AM in Chicago, it's 1:00 AM in Sydney. Aim for late morning to early afternoon in Chicago for the best chance of reaching someone during working hours.
What currency does Sydney use?
Sydney, Australia uses AUD. Chicago 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. Chicago also speaks English, making communication easier.
How do I dial Sydney from Chicago?
To call Sydney from Chicago, dial your international access code followed by +61 and the local number. Chicago uses country code +1 and Sydney uses +61.
