Time Difference Between Chicago and Atlanta
Chicago is 1 hour behind of Atlanta. Live local times, working-hour overlap and a 24-hour meeting suitability table, computed from the IANA time zone database in your browser.
Best time to meet
On a normal weekday the two cities share 8 hours of overlapping working time: 09:00–17:00 in Chicago, which is 10:00–18:00 in Atlanta. That is the window to protect for recurring meetings.
Next 24 hours
Scored against a 09:00–18:00 weekday working day in both cities. Updates live.
| Chicago | Atlanta | Suitability |
|---|---|---|
| Loading live table… | ||
Chicago working hours converted to Atlanta
| Chicago time | Atlanta time |
|---|---|
| 09:00 | 10:00 |
| 10:00 | 11:00 |
| 12:00 | 13:00 |
| 14:00 | 15:00 |
| 16:00 | 17:00 |
| 18:00 | 19:00 |
Based on a 09:00–18:00 working day and today's UTC offsets (UTC-5 and UTC-4).
Frequently asked questions
What is the time difference between Chicago and Atlanta?
Chicago is 1 hour behind of Atlanta: UTC-5 versus UTC-4. Both figures include any daylight saving currently in force.
What is the best time to call from Chicago to Atlanta?
Aim for 09:00–17:00 in Chicago, which lands at 10:00–18:00 in Atlanta. Both sides stay inside a normal working day.
Does the overlap between Chicago and Atlanta change during the year?
Yes, whenever the two regions do not switch daylight saving on the same date — or one does not observe it at all. The window above is computed for today's rules; re-check it in the weeks after a clock change.