| Calumet City Time | CLST | |
|---|---|---|
| 11:00 PM Wednesday Calumet City Time (CDT) | ↔ | 01:00 AM Thursday CLST |
| 12:00 AM Thursday Calumet City Time (CDT) | ↔ | 02:00 AM Thursday CLST |
| 01:00 AM Thursday Calumet City Time (CDT) | ↔ | 03:00 AM Thursday CLST |
| 02:00 AM Thursday Calumet City Time (CDT) | ↔ | 04:00 AM Thursday CLST |
| 03:00 AM Thursday Calumet City Time (CDT) | ↔ | 05:00 AM Thursday CLST |