| Sarnia Time | SAST | |
|---|---|---|
| 12:00 AM Tuesday Sarnia Time (EDT) | ↔ | 06:00 AM Tuesday SAST |
| 01:00 AM Tuesday Sarnia Time (EDT) | ↔ | 07:00 AM Tuesday SAST |
| 02:00 AM Tuesday Sarnia Time (EDT) | ↔ | 08:00 AM Tuesday SAST |
| 03:00 AM Tuesday Sarnia Time (EDT) | ↔ | 09:00 AM Tuesday SAST |
| 04:00 AM Tuesday Sarnia Time (EDT) | ↔ | 10:00 AM Tuesday SAST |