| Standard | DST | Time zone | |
|---|---|---|---|
| UTC−08:00 | UTC−07:00 | Pacific | |
| UTC−07:00 (year round) | Mountain | ||
| UTC−07:00 | UTC−06:00 | Mountain | |
| UTC−06:00 (year round) | Central | ||
| UTC−06:00 | UTC−05:00 | Central | |
| UTC−05:00 (year round) | Eastern | ||
| UTC−05:00 | UTC−04:00 | Eastern | |
| UTC−04:00 (year round) | Atlantic | ||
| UTC−04:00 | UTC−03:00 | Atlantic | |
| UTC−03:30 | UTC−02:30 | Newfoundland | |
Canada is divided into six time zones. Most areas of the country's provinces and territories operate on standard time from the first Sunday in November to the second Sunday in March and daylight saving time the rest of the year.[1]
The divisions between time zones are based on proposals by Scottish Canadian railway engineer Sandford Fleming, who pioneered the use of the 24-hour clock, the world's time zone system, and a standard prime meridian.[2]
- ^ Canada Flight Supplement. Effective 0901Z 16 July 2020 to 0901Z 10 September 2020.
- ^ Creet, Mario (1990). "Sandford Fleming and Universal Time". Scientia Canadensis: Canadian Journal of the History of Science, Technology and Medicine. 14 (1–2): 66–89. doi:10.7202/800302ar.