| Alton Time | UTC | |
|---|---|---|
| 08:00 PM Monday Alton Time (CDT) | ↔ | 01:00 AM Tuesday UTC |
| 09:00 PM Monday Alton Time (CDT) | ↔ | 02:00 AM Tuesday UTC |
| 10:00 PM Monday Alton Time (CDT) | ↔ | 03:00 AM Tuesday UTC |
| 11:00 PM Monday Alton Time (CDT) | ↔ | 04:00 AM Tuesday UTC |
| 12:00 AM Tuesday Alton Time (CDT) | ↔ | 05:00 AM Tuesday UTC |