| Calumet City Time | EDT | |
|---|---|---|
| 10:00 PM Tuesday Calumet City Time (CDT) | ↔ | 11:00 PM Tuesday EDT |
| 11:00 PM Tuesday Calumet City Time (CDT) | ↔ | 12:00 AM Wednesday EDT |
| 12:00 AM Wednesday Calumet City Time (CDT) | ↔ | 01:00 AM Wednesday EDT |
| 01:00 AM Wednesday Calumet City Time (CDT) | ↔ | 02:00 AM Wednesday EDT |
| 02:00 AM Wednesday Calumet City Time (CDT) | ↔ | 03:00 AM Wednesday EDT |