| Chicago Ridge Time | SAST | |
|---|---|---|
| 12:00 AM Monday Chicago Ridge Time (CDT) | ↔ | 07:00 AM Monday SAST |
| 01:00 AM Monday Chicago Ridge Time (CDT) | ↔ | 08:00 AM Monday SAST |
| 02:00 AM Monday Chicago Ridge Time (CDT) | ↔ | 09:00 AM Monday SAST |
| 03:00 AM Monday Chicago Ridge Time (CDT) | ↔ | 10:00 AM Monday SAST |
| 04:00 AM Monday Chicago Ridge Time (CDT) | ↔ | 11:00 AM Monday SAST |