Chicago to Sydney Time Converter
Convert Chicago to Sydney instantly.
Scroll the timeline to check any hour of the day.
Chicago
CST
3:28
Sydney
AEST
6:28
Chicago is on daylight savings (CDT), while Sydney is on standard time (AEST) right now.
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How the Chicago to Sydney time difference works
Sydney is 15 hours ahead of Chicago. Chicago (CST) is a city in United States. Sydney (AEST) is a city in Australia. For example, 9:00 AM Chicago is 12:00 AM Sydney. Scroll the timeline above to convert any moment, or use the chart below for a quick reference.
Time difference
15 hours
Daylight saving
Both observe
Chicago offset
UTC-6
Sydney offset
UTC+10
Chicago to Sydney conversion chart
| Chicago (CST) | Sydney (AEST) |
|---|---|
| 12:00 AM | 3:00 PM |
| 1:00 AM | 4:00 PM |
| 2:00 AM | 5:00 PM |
| 3:00 AM | 6:00 PM |
| 4:00 AM | 7:00 PM |
| 5:00 AM | 8:00 PM |
| 6:00 AM | 9:00 PM |
| 7:00 AM | 10:00 PM |
| 8:00 AM | 11:00 PM |
| 9:00 AM | 12:00 AM +1 day |
| 10:00 AM | 1:00 AM +1 day |
| 11:00 AM | 2:00 AM +1 day |
| 12:00 PM | 3:00 AM +1 day |
| 1:00 PM | 4:00 AM +1 day |
| 2:00 PM | 5:00 AM +1 day |
| 3:00 PM | 6:00 AM +1 day |
| 4:00 PM | 7:00 AM +1 day |
| 5:00 PM | 8:00 AM +1 day |
| 6:00 PM | 9:00 AM +1 day |
| 7:00 PM | 10:00 AM +1 day |
| 8:00 PM | 11:00 AM +1 day |
| 9:00 PM | 12:00 PM +1 day |
| 10:00 PM | 1:00 PM +1 day |
| 11:00 PM | 2:00 PM +1 day |
Cities in each time zone
Chicago (CST)
HoustonDallasAustinSan AntonioFort WorthLincoln (Nebraska)
Sydney (AEST)
CanberraAustralian Eastern Time
Chicago to Sydney questions
Is Sydney ahead of or behind Chicago?
Sydney is 15 hours ahead of Chicago. So 9:00 AM Chicago is 12:00 AM Sydney, and 5:00 PM Chicago is 8:00 AM Sydney.
What time is it in Sydney when it is 12:00 PM Chicago?
When it is 12:00 PM (noon) Chicago in Chicago, it is 3:00 AM Sydney in Sydney.
How many hours difference is there between Chicago and Sydney?
There is a 15 hours difference. Sydney (AEST) runs 15 hours ahead of Chicago (CST).
Do Chicago and Sydney observe daylight saving time?
Both Chicago and Sydney observe daylight saving time, but they switch on different dates, so the gap briefly shifts by an hour around the spring and autumn changeovers.
What is the best time to schedule a meeting between Chicago and Sydney?
A standard 9-to-5 workday in Chicago and Sydney does not overlap, so pick the early morning in the later zone or the late evening in the earlier zone.
Which cities use Chicago and Sydney?
Chicago (CST) covers cities such as Houston, Dallas, Austin, San Antonio, Fort Worth, Lincoln (Nebraska). Sydney (AEST) covers cities such as Canberra, Australian Eastern Time.