From mid-March to early November, Eastern Daylight Time is observed in most of Ontario, Quebec and parts of Nunavut. From early November to mid-March, Eastern Standard Time is in effect. The name of the time zone is abbreviated when a specific time is stated; otherwise it is written out in full. The abbreviations EDT and EST are written in upper case, with no periods. Time zones may be stated with either the 12-hour or 24-hour system (e.g. 3:15 a.m. EDT or 03:15 EDT).
- Many television schedules are based on Eastern Standard Time, because Toronto and New York were the first production centres.
- The fireworks will begin at 11:15 p.m. EDT.
- The lion cubs were born at 04:45 EST and were shown to the public at noon.
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