| population: | 2,664,452 |
| latitude: | 41.85° N |
| longitude: | 87.65° W |
| elevation: | 180m |
| local time: | 01:45 |
| local date: | Wed 16 Sep |
| current time zone: | UTC-05:00 |
| DST observed: | yes |
| Currently on DST: | yes |
| DST started: | Sun 8 Mar 2026 |
| DST ends: | Sun 1 Nov 2026 |
| sunrise: | 06:32 |
| sunset: | 18:58 |
| day length: | 12h 26m |
| solar noon: | 12:45 |