Most of the year, Paris is 7 hours ahead of Chicago. During Mar 8–Mar 28, Oct 25–Oct 31, Paris is 6 hours ahead of Chicago.
| Chicago | Paris Most of the year | Paris Mar 8–Mar 28, Oct 25–Oct 31 |
|---|---|---|
| 12 AM | 7 AM | 6 AM |
| 1 AM | 8 AM | 7 AM |
| 2 AM | 9 AM | 8 AM |
| 3 AM | 10 AM | 9 AM |
| 4 AM | 11 AM | 10 AM |
| 5 AM | 12 PM | 11 AM |
| 6 AM | 1 PM | 12 PM |
| 7 AM | 2 PM | 1 PM |
| 8 AM | 3 PM | 2 PM |
| 9 AM | 4 PM | 3 PM |
| 10 AM | 5 PM | 4 PM |
| 11 AM | 6 PM | 5 PM |
| 12 PM | 7 PM | 6 PM |
| 1 PM | 8 PM | 7 PM |
| 2 PM | 9 PM | 8 PM |
| 3 PM | 10 PM | 9 PM |
| 4 PM | 11 PM | 10 PM |
| 5 PM | 12 AMnext day | 11 PM |
| 6 PM | 1 AMnext day | 12 AMnext day |
| 7 PM | 2 AMnext day | 1 AMnext day |
| 8 PM | 3 AMnext day | 2 AMnext day |
| 9 PM | 4 AMnext day | 3 AMnext day |
| 10 PM | 5 AMnext day | 4 AMnext day |
| 11 PM | 6 AMnext day | 5 AMnext day |
Chicago observes daylight saving time from Mar 8, 2026 to Nov 1, 2026, when clocks move forward one hour.
Paris observes daylight saving time from Mar 29, 2026 to Oct 25, 2026, when clocks move forward one hour.
Most of the year, Paris is 7 hours ahead of Chicago. During Mar 8–Mar 28, Oct 25–Oct 31, Paris is 6 hours ahead of Chicago.
Chicago observes daylight saving time from Mar 8, 2026 to Nov 1, 2026, when clocks move forward one hour. Paris observes daylight saving time from Mar 29, 2026 to Oct 25, 2026, when clocks move forward one hour.
Most of the year: Both cities are in business hours at Chicago 9 AM–11 AM (Paris 4 PM–6 PM). Mar 8–Mar 28, Oct 25–Oct 31: Both cities are in business hours at Chicago 9 AM–12 PM (Paris 3 PM–6 PM).