| Sarnia Time | GMT | |
|---|---|---|
| 12:00 AM Monday Sarnia Time (EDT) | ↔ | 04:00 AM Monday GMT |
| 01:00 AM Monday Sarnia Time (EDT) | ↔ | 05:00 AM Monday GMT |
| 02:00 AM Monday Sarnia Time (EDT) | ↔ | 06:00 AM Monday GMT |
| 03:00 AM Monday Sarnia Time (EDT) | ↔ | 07:00 AM Monday GMT |
| 04:00 AM Monday Sarnia Time (EDT) | ↔ | 08:00 AM Monday GMT |