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