Chicago, United States Sydney, Australia
Compare time between Chicago and Sydney
Frequently Asked Questions
Chicago is in the CDT timezone (UTC-5) and Sydney is in the AEDT timezone (UTC+11). The time difference between them is 16 hours.
Use the timeline above to find overlapping business hours between Chicago 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 Chicago 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 Chicago 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.