| Calumet City Time | UTC | |
|---|---|---|
| 01:00 AM Friday Calumet City Time (CST) | ↔ | 07:00 AM Friday UTC |
| 02:00 AM Friday Calumet City Time (CST) | ↔ | 08:00 AM Friday UTC |
| 03:00 AM Friday Calumet City Time (CST) | ↔ | 09:00 AM Friday UTC |
| 04:00 AM Friday Calumet City Time (CST) | ↔ | 10:00 AM Friday UTC |
| 05:00 AM Friday Calumet City Time (CST) | ↔ | 11:00 AM Friday UTC |