| Calumet City Time | MDT | |
|---|---|---|
| 11:57 AM Sunday Calumet City Time (CDT) | ↔ | 10:57 AM Sunday MDT |
| 12:57 PM Sunday Calumet City Time (CDT) | ↔ | 11:57 AM Sunday MDT |
| 01:57 PM Sunday Calumet City Time (CDT) | ↔ | 12:57 PM Sunday MDT |
| 02:57 PM Sunday Calumet City Time (CDT) | ↔ | 01:57 PM Sunday MDT |
| 03:57 PM Sunday Calumet City Time (CDT) | ↔ | 02:57 PM Sunday MDT |