| Chicago Ridge Time | SAST | |
|---|---|---|
| 04:00 PM Monday Chicago Ridge Time (CDT) | ↔ | 11:00 PM Monday SAST |
| 05:00 PM Monday Chicago Ridge Time (CDT) | ↔ | 12:00 AM Tuesday SAST |
| 06:00 PM Monday Chicago Ridge Time (CDT) | ↔ | 01:00 AM Tuesday SAST |
| 07:00 PM Monday Chicago Ridge Time (CDT) | ↔ | 02:00 AM Tuesday SAST |
| 08:00 PM Monday Chicago Ridge Time (CDT) | ↔ | 03:00 AM Tuesday SAST |