Mar 9, 2025, 2:00 am
| Start DST: | Sunday, March 12, 2017 — 1 hour forward |
|---|---|
| End DST: | Sunday, November 5, 2017 — 1 hour backward |
Mar 12
Forward 1 hour
Mar 12, 2017 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, March 12, 2017, 2:00:00 am clocks were turned forward 1 hour to
Sunday, March 12, 2017, 3:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Mar 12, 2017 than the day before. There was more light in the evening and less light in the morning.
Also called Spring Forward, Summer Time, and Daylight Savings Time.
More info:
Alberta Discussing Daylight Saving Time
DST Starts in USA & Canada
Nov 5
Back 1 hour
Nov 5, 2017 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, November 5, 2017, 2:00:00 am clocks were turned backward 1 hour to
Sunday, November 5, 2017, 1:00:00 am local standard time instead.
Sunrise and sunset were about 1 hour earlier on Nov 5, 2017 than the day before. There was more light in the morning and less light in the evening.
Also called Fall Back and Winter Time.
More info:
Clocks Go Back 1 Hour in USA & Canada on Nov 5, 2017
Daylight Saving Time in Other Years
DST changes do not necessarily occur on the same date every year.
Data for the years before 1970 is not available for Sarnia, however, we have earlier time zone history for Toronto available.