Chicago to Sydney Time Converter
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Add one or more places to compare local times, adjust the date, and share the result.
Quick answers
Selected conversion
7:00 am07:00 CDT (UTC-5), Oct 18, 2026 = 11:00 pm23:00 AEDT (UTC+11), Oct 18, 2026
Chicago is 16 hours behind Sydney.
How the time difference changes
Depending on seasonal clock changes, Chicago is 15 hours behind Sydney, Chicago is 16 hours behind Sydney, or Chicago is 17 hours behind Sydney.
Depending on seasonal clock changes, working hours of 9:00 am to 6:00 pm in Chicago correspond to 12:00 am (next day) to 9:00 am (next day) in Sydney, working hours of 9:00 am to 6:00 pm in Chicago correspond to 1:00 am (next day) to 10:00 am (next day) in Sydney, or working hours of 9:00 am to 6:00 pm in Chicago correspond to 2:00 am (next day) to 11:00 am (next day) in Sydney.Depending on seasonal clock changes, working hours of 09:00 to 18:00 in Chicago correspond to 00:00 (next day) to 09:00 (next day) in Sydney, working hours of 09:00 to 18:00 in Chicago correspond to 01:00 (next day) to 10:00 (next day) in Sydney, or working hours of 09:00 to 18:00 in Chicago correspond to 02:00 (next day) to 11:00 (next day) in Sydney.
Compare Chicago time with Sydney time, including current local time, UTC offsets, time difference, daylight saving changes, working hours, and shareable meeting times.
Time Difference
CDT (Central Daylight Time) is 16 hours behind AEDT (Australian Eastern Daylight Time).
7:00 am07:00 in Chicago, IL, USA is 11:00 pm23:00 in Sydney, Australia
Chicago to Sydney call time
Best time for a conference call or a meeting is between 5pm-6pm17:00-18:00 in Chicago which corresponds to 9am-10am09:00-10:00 in Sydney (next day)
7:00 am07:00 CDT (Central Daylight Time) (Chicago, IL, USA). Offset UTC -5:00 hours
11:00 pm23:00 AEDT (Australian Eastern Daylight Time) (Sydney, Australia). Offset UTC +11:00 hours
7:00 am07:00 Chicago, IL, USA / 11:00 pm23:00 Sydney, Australia
Choose an hour to update the converter. Day labels such as “next day” or “+1” are relative to the selected date in the first column. Use Up and Down arrow keys, Home or End to move between hours, then Enter or Space to select.
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Chicago Time Zone and Facts
Time Zone
CST – Central Standard Time, UTC-6 (standard time)
Chicago Facts
Sydney Time Zone and Facts
Time Zone
AEST – Australian Eastern Standard Time, UTC+10 (standard time)