The table and maps below show Canada’s six time zones and the number of hours they are behind Greenwich Mean Time (GMT). Daylight Savings Time is observed the first Sunday in April to the last Sunday in October in most of Canada. The remainder of the time is Standard Time. (Note: Saskatchewan does not observe Daylight Savings Time).
| Time Zone | Standard Time | Daylight Savings Time |
| Pacific | GMT -0800 | GMT -0700 |
| Mountain | GMT -0700 | GMT -0600 |
| Central | GMT -0600 | GMT -0500 |
| Eastern | GMT -0500 | GMT -0400 |
| Atlantic | GMT -0400 | GMT -0300 |
| Newfoundland | GMT -0330 | GMT -0230 |
