Time zones are abbreviated when used with a specific time. Note that capitals are used, without periods.
- 4:30 p.m. EST
- 7:15 a.m. MST
When no specific time is given, time zones are written out in full:
- Pacific Standard Time
- Mountain Standard Time
The six time zones in Canada and their abbreviations are listed below:
- Newfoundland Standard Time – NST
- Atlantic Standard Time – AST
- Eastern Standard Time – EST
- Central Standard Time – CST
- Mountain Standard Time – MST
- Pacific Standard Time – PST
From March to November, when clocks are put ahead one hour, the time zones are on daylight saving time (DST):
- Newfoundland Daylight Time – NDT
- Atlantic Daylight Time – ADT
- Eastern Daylight Time – EDT
- Central Daylight Time – CDT
- Mountain Daylight Time – MDT
- Pacific Daylight Time – PDT
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© His Majesty the King in Right of Canada, represented by the Minister of Public Services and Procurement
A tool created and made available online by the Translation Bureau, Public Services and Procurement Canada
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