Time in Sydney vs Chicago
Sydney keeps AEDT (UTC+11) and Chicago keeps CDT (UTC−5) today. Chicago is 16 hours behind Sydney; the rows below read both clocks live.
The working day, side by side
Hours shaded in both rows are inside working hours in both cities: 17:00–18:00 in Chicago (09:00–10:00 your time).
| City | 00:00 in Sydney | 01:00 in Sydney | 02:00 in Sydney | 03:00 in Sydney | 04:00 in Sydney | 05:00 in Sydney | 06:00 in Sydney | 07:00 in Sydney | 08:00 in Sydney | 09:00 in Sydney | 10:00 in Sydney | 11:00 in Sydney | 12:00 in Sydney | 13:00 in Sydney | 14:00 in Sydney | 15:00 in Sydney | 16:00 in Sydney | 17:00 in Sydney | 18:00 in Sydney | 19:00 in Sydney | 20:00 in Sydney | 21:00 in Sydney | 22:00 in Sydney | 23:00 in Sydney |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sydney—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| Chicago—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with Sydney and Chicago
Best hours to call
Where daylight saving pulls them apart
Sydney next changes on Sunday 4 April 2027. Chicago next changes on Sunday 1 November 2026. Between those two dates the gap between the cities is an hour different from the one shown above — which is exactly when a recurring meeting drifts. Every date we track is on the daylight saving page.
Also useful
Common questions
How many hours ahead is Chicago of Sydney?
Chicago is 16 hours behind Sydney right now. The gap is not fixed: it moves whenever either side changes its clocks.
What is the best time to call between Sydney and Chicago?
Any hour in 09:00–10:00 Sydney time is inside working hours in both cities.
Do Sydney and Chicago change clocks on the same date?
No. Sydney changes on 4 April 2027 and Chicago on 1 November 2026, so the gap moves by an hour in between.