| Calumet City Time | GMT | |
|---|---|---|
| 05:00 PM Tuesday Calumet City Time (CDT) | ↔ | 10:00 PM Tuesday GMT |
| 06:00 PM Tuesday Calumet City Time (CDT) | ↔ | 11:00 PM Tuesday GMT |
| 07:00 PM Tuesday Calumet City Time (CDT) | ↔ | 12:00 AM Wednesday GMT |
| 08:00 PM Tuesday Calumet City Time (CDT) | ↔ | 01:00 AM Wednesday GMT |
| 09:00 PM Tuesday Calumet City Time (CDT) | ↔ | 02:00 AM Wednesday GMT |