Sydney is 15 hours ahead of Chicago. When it is noon in Chicago, it is 3:00 AM (next day) in Sydney. The same gap applies whether you look at it as Chicago to Sydney or Sydney to Chicago.
Sydney is 15 hours ahead of Chicago, usually.
The gap is not constant. Because Chicago and Sydney change their clocks on different dates, the difference becomes 16 hours or 17 hours for part of the year. The live section above shows the exact gap right now and when it next changes.
| Chicago | Sydney |
|---|---|
| 6:00 AM | 9:00 PM |
| 9:00 AM | 12:00 AM (next day) |
| 12:00 PM | 3:00 AM (next day) |
| 3:00 PM | 6:00 AM (next day) |
| 6:00 PM | 9:00 AM (next day) |
| 9:00 PM | 12:00 PM (next day) |
Based on the usual 15 hours gap.
Chicago and Sydney have no overlap in standard 9-to-5 working hours, so one side needs to start early or finish late. If you stretch the day to 7 AM to 10 PM in both cities, the shared window is 4:00 PM to 10:00 PM in Chicago (7:00 AM to 1:00 PM (next day) in Sydney).
The best time to call is around 7:00 PM in Chicago (10:00 AM (next day) in Sydney). That time falls outside standard 9-to-5 hours in at least one city. These times use the usual gap; for a few weeks each year, shift them by the difference noted above.
Sydney is 15 hours ahead of Chicago, usually. It becomes 16 hours or 17 hours for part of the year.
Sydney is 15 hours ahead of Chicago.
Yes. The usual gap is 15 hours, but because Chicago and Sydney change their clocks on different dates, it becomes 16 hours or 17 hours for part of the year. The live section above lists the next changes.
The best time to call is around 7:00 PM in Chicago (10:00 AM (next day) in Sydney). That time falls outside standard 9-to-5 hours in at least one city.