Compare the current local time in Chicago and Sydney side by side, with the live time difference, a quick conversion table, and the overlapping working hours for scheduling calls.
There is little or no overlap in standard 9–5 working hours, so a call will fall outside business hours for one side.
Planning a call between Chicago and Sydney
Chicago is 15 hours behind Sydney. The clocks above are live and adjust automatically for daylight saving time, so the difference is always current. For a full visual overlap across more cities, use the meeting planner, or view each city on its own page: time in Chicago and time in Sydney.
Frequently asked questions
What is the time difference between Chicago and Sydney?
Chicago is 15 hours behind Sydney. The clocks on this page are live and adjust automatically for daylight saving time, so the difference shown is always current.
What time zones do Chicago and Sydney use?
Chicago uses the America/Chicago time zone and Sydney uses the Australia/Sydney time zone.
When is the best time to schedule a call between Chicago and Sydney?
Use the meeting planner to see the overlapping working hours between Chicago and Sydney and find the easiest window to schedule a call.