Nov 2, 2025, 2:00 am
Mar 14
Forward 1 hour
Mar 14, 2021 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, March 14, 2021, 2:00:00 am clocks were turned forward 1 hour to
Sunday, March 14, 2021, 3:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Mar 14, 2021 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:
DST Starts in the US & Canada
Yukon to Stay Permanently on DST
Nov 7
Back 1 hour
Nov 7, 2021 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, November 7, 2021, 2:00:00 am clocks were turned backward 1 hour to
Sunday, November 7, 2021, 1:00:00 am local standard time instead.
Sunrise and sunset were about 1 hour earlier on Nov 7, 2021 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:
Daylight Saving Time Ends in USA & Canada
DST in Locations in Ontario in 2021 (66 Locations) |
|||||
|---|---|---|---|---|---|
| Ajax | Mar 14 – Nov 7 | Hamilton | Mar 14 – Nov 7 | Peterborough | Mar 14 – Nov 7 |
| Atikokan | No DST | Huntsville | Mar 14 – Nov 7 | Pickering | Mar 14 – Nov 7 |
| Barrie | Mar 14 – Nov 7 | Kawartha Lakes | Mar 14 – Nov 7 | Pickle Lake | No DST |
| Belleville | Mar 14 – Nov 7 | Kenora | Mar 14 – Nov 7 | Rainy River | Mar 14 – Nov 7 |
| Brampton | Mar 14 – Nov 7 | Kingston | Mar 14 – Nov 7 | Renfrew | Mar 14 – Nov 7 |
| Brantford | Mar 14 – Nov 7 | Kirkland Lake | Mar 14 – Nov 7 | Richmond Hill | Mar 14 – Nov 7 |
| Brockville | Mar 14 – Nov 7 | Kitchener | Mar 14 – Nov 7 | Sarnia | Mar 14 – Nov 7 |
| Burlington | Mar 14 – Nov 7 | London | Mar 14 – Nov 7 | Sault Ste. Marie | Mar 14 – Nov 7 |
| Caledon | Mar 14 – Nov 7 | Markham | Mar 14 – Nov 7 | St. Catharines | Mar 14 – Nov 7 |
| Cambridge | Mar 14 – Nov 7 | Milton | Mar 14 – Nov 7 | St. Joseph | Mar 14 – Nov 7 |
| Chatham-Kent | Mar 14 – Nov 7 | Mississauga | Mar 14 – Nov 7 | St. Thomas | Mar 14 – Nov 7 |
| Clarington | Mar 14 – Nov 7 | Newmarket | Mar 14 – Nov 7 | Stratford | Mar 14 – Nov 7 |
| Cornwall | Mar 14 – Nov 7 | Niagara Falls | Mar 14 – Nov 7 | Temiskaming Shores | Mar 14 – Nov 7 |
| Dryden | Mar 14 – Nov 7 | Nipigon | Mar 14 – Nov 7 | Thunder Bay | Mar 14 – Nov 7 |
| Fort Frances | Mar 14 – Nov 7 | Norfolk | Mar 14 – Nov 7 | Timmins | Mar 14 – Nov 7 |
| Fort Severn First Nation | Mar 14 – Nov 7 | North Bay | Mar 14 – Nov 7 | Toronto | Mar 14 – Nov 7 |
| Goderich | Mar 14 – Nov 7 | Oakville | Mar 14 – Nov 7 | Uxbridge | Mar 14 – Nov 7 |
| Gravenhurst | Mar 14 – Nov 7 | Orillia | Mar 14 – Nov 7 | Vaughan | Mar 14 – Nov 7 |
| Greater Sudbury | Mar 14 – Nov 7 | Oshawa | Mar 14 – Nov 7 | Waterloo | Mar 14 – Nov 7 |
| Guelph | Mar 14 – Nov 7 | Ottawa | Mar 14 – Nov 7 | Welland | Mar 14 – Nov 7 |
| Haldimand | Mar 14 – Nov 7 | Owen Sound | Mar 14 – Nov 7 | Whitby | Mar 14 – Nov 7 |
| Halton Hills | Mar 14 – Nov 7 | Pembroke | Mar 14 – Nov 7 | Windsor | Mar 14 – Nov 7 |
Daylight Saving Time History in Ontario
- Ontario first observed Daylight Saving Time in 1908.
- Ontario has observed DST for 109 years between 1908 and 2025 (DST in at least one location).
- Previous time with no Daylight Saving Time was 1917.
- See Worldwide DST Statistics