Sydney to Chicago Time Converter
Chicago, US is currently 15 hours behind Sydney, Australia. Sydney is on AEST (UTC+10) and Chicago is on CDT (UTC-5). The table below converts every hour of the day between the two, and the call planner shows where working hours line up.
Best Time for a Call
Both sides are inside 9:00 AM to 5:00 PM office hours between 9:00 AM and 5:00 PM in Sydney, which is 9:00 AM to 5:00 PM in Chicago.
Comparing more than two places? The Overlap Zones tool shows working hours for several cities on one grid.
Hour by Hour: Sydney to Chicago
Rows marked office hours fall between 9:00 AM and 5:00 PM in both places. For a specific date, use the interactive converter.
Does the Difference Change During the Year?
The difference between Sydney and Chicago is not fixed. It is 17 hours in January and 15 hours in July, because the two places handle daylight saving differently. This page always reflects the current offsets.
Frequently Asked Questions
How many hours behind is Chicago compared to Sydney?
Chicago is currently 15 hours behind Sydney. The difference between Sydney and Chicago is not fixed. It is 17 hours in January and 15 hours in July, because the two places handle daylight saving differently. This page always reflects the current offsets.
What time is 9:00 AM in Sydney in Chicago?
9:00 AM in Sydney is 6:00 PM in Chicago on the previous day.
What is the best time for a call between Sydney and Chicago?
Both sides are inside 9:00 AM to 5:00 PM office hours between 9:00 AM and 5:00 PM in Sydney, which is 9:00 AM to 5:00 PM in Chicago.