Live Synchronized Time Difference
ChicagotoSydneyTime Difference
🇺🇸
Chicago
United States (CDT)10:10:20UTC-5:00
🇦🇺
Sydney
Australia (GMT+11)02:10:20UTC+11:00
Direct Distance14,876 km (9,244 miles)
Estimated Flight Time~18 hours
Business Overlap0 overlapping hours (9am–5pm)
Feasible Shoulder Hours Window
Recommended calling window between Chicago and Sydney
Off-Peak Calling Window
Chicago Time
3:00 PM – 9:00 PM
Sydney Time
7:00 AM – 1:00 PM
There are no overlapping 9-to-5 working hours between Chicago and Sydney. The optimal compromise window falls during morning/evening shoulder periods (7:00 AM – 9:00 PM) when participants in both locations are awake.
24-Hour Schedule Conversion Matrix
Compare every hour of the day between Chicago and Sydney.
Work (9am-5pm)ShoulderSleep / Off
| Chicago Time (United States) | Sydney Time (Australia) | Status & Recommendation |
|---|---|---|
| 00:00AM | 16:00PM | ⚪ Outside Work Hours |
| 01:00AM | 17:00PM | ⚪ Outside Work Hours |
| 02:00AM | 18:00PM | ⚪ Outside Work Hours |
| 03:00AM | 19:00PM | ⚪ Outside Work Hours |
| 04:00AM | 20:00PM | ⚪ Outside Work Hours |
| 05:00AM | 21:00PM | ⚪ Outside Work Hours |
| 06:00AM | 22:00PM | ⚪ Outside Work Hours |
| 07:00AM | 23:00PM | ⚪ Outside Work Hours |
| 08:00AM | 00:00AM | ⚪ Outside Work Hours |
| 09:00AM | 01:00AM | ⚪ Outside Work Hours |
| 10:00AM | 02:00AM | ⚪ Outside Work Hours |
| 11:00AM | 03:00AM | ⚪ Outside Work Hours |
| 12:00PM | 04:00AM | ⚪ Outside Work Hours |
| 13:00PM | 05:00AM | ⚪ Outside Work Hours |
| 14:00PM | 06:00AM | ⚪ Outside Work Hours |
| 15:00PM | 07:00AM | 🟡 Feasible (Shoulder Hour) |
| 16:00PM | 08:00AM | 🟡 Feasible (Shoulder Hour) |
| 17:00PM | 09:00AM | ⚪ Outside Work Hours |
| 18:00PM | 10:00AM | ⚪ Outside Work Hours |
| 19:00PM | 11:00AM | ⚪ Outside Work Hours |
| 20:00PM | 12:00PM | ⚪ Outside Work Hours |
| 21:00PM | 13:00PM | ⚪ Outside Work Hours |
| 22:00PM | 14:00PM | ⚪ Outside Work Hours |
| 23:00PM | 15:00PM | ⚪ Outside Work Hours |
Frequently Asked Questions
What is the time difference between Chicago and Sydney?
Sydney is 16 hours ahead of Chicago.
What is the best time to schedule a cross-border meeting between Chicago and Sydney?
Because of the wide timezone separation, a compromise meeting window during early morning in one location and evening in the other is recommended.
Does daylight saving time (DST) affect the time difference between Chicago and Sydney?
Yes. If either United States or Australia observes seasonal Daylight Saving Time transitions, the offset difference shifts by one hour on scheduled transition dates.