Chicago to Sydney Time Difference
Chicago is 15 hours behind Sydney. See live clocks for both cities and an hour-by-hour meeting planner to find the best time to talk between Chicago and Sydney.
Meeting planner: Chicago ↔ Sydney
Green rows are comfortable hours (9am–6pm) in both cities — the best times to talk.
| Chicago | Sydney |
|---|---|
| 00:00 | 15:00 |
| 01:00 | 16:00 |
| 02:00 | 17:00 |
| 03:00 | 18:00 |
| 04:00 | 19:00 |
| 05:00 | 20:00 |
| 06:00 | 21:00 |
| 07:00 | 22:00 |
| 08:00 | 23:00 |
| 09:00 | 00:00 +1d |
| 10:00 | 01:00 +1d |
| 11:00 | 02:00 +1d |
| 12:00 | 03:00 +1d |
| 13:00 | 04:00 +1d |
| 14:00 | 05:00 +1d |
| 15:00 | 06:00 +1d |
| 16:00 | 07:00 +1d |
| 17:00 | 08:00 +1d |
| 18:00 | 09:00 +1d |
| 19:00 | 10:00 +1d |
| 20:00 | 11:00 +1d |
| 21:00 | 12:00 +1d |
| 22:00 | 13:00 +1d |
| 23:00 | 14:00 +1d |
Time difference between Chicago and Sydney
Chicago is 15 hours behind Sydney. Chicago is in the CDT time zone and Sydney is in AEST. The clocks above are live, so the difference is always up to date — including when either city is on daylight saving time.
Frequently asked questions
What is the time difference between Chicago and Sydney?
Chicago is 15 hours behind Sydney.
When it is noon in Chicago, what time is it in Sydney?
Use the planner above — read across from 12:00 in the Chicago column to the Sydney column.
What is the best time to schedule a call between Chicago and Sydney?
The green rows in the planner show hours that fall within 9am–6pm in both cities — those are the most convenient times for a meeting.
Does this account for daylight saving time?
Yes — the clocks and difference use live time-zone data, so they adjust automatically when either city changes its clocks.