Mar 9, 2025, 2:00 am
Apr 30
Forward 1 hour
Apr 30, 1978 - Daylight Saving Time Started
When local standard time was about to reach
Sunday, April 30, 1978, 2:00:00 am clocks were turned forward 1 hour to
Sunday, April 30, 1978, 3:00:00 am local daylight time instead.
Sunrise and sunset were about 1 hour later on Apr 30, 1978 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.
Oct 29
Back 1 hour
Oct 29, 1978 - Daylight Saving Time Ended
When local daylight time was about to reach
Sunday, October 29, 1978, 2:00:00 am clocks were turned backward 1 hour to
Sunday, October 29, 1978, 1:00:00 am local standard time instead.
Sunrise and sunset were about 1 hour earlier on Oct 29, 1978 than the day before. There was more light in the morning and less light in the evening.
Also called Fall Back and Winter Time.
DST in Locations in Ontario in 1978 (66 Locations) | |||||
|---|---|---|---|---|---|
| Ajax | Apr 30 – Oct 29 | Hamilton | Apr 30 – Oct 29 | Peterborough | Apr 30 – Oct 29 |
| Atikokan | No DST | Huntsville | Apr 30 – Oct 29 | Pickering | Apr 30 – Oct 29 |
| Barrie | Apr 30 – Oct 29 | Kawartha Lakes | Apr 30 – Oct 29 | Pickle Lake | No DST |
| Belleville | Apr 30 – Oct 29 | Kenora | Apr 30 – Oct 29 | Rainy River | Apr 30 – Oct 29 |
| Brampton | Apr 30 – Oct 29 | Kingston | Apr 30 – Oct 29 | Renfrew | Apr 30 – Oct 29 |
| Brantford | Apr 30 – Oct 29 | Kirkland Lake | Apr 30 – Oct 29 | Richmond Hill | Apr 30 – Oct 29 |
| Brockville | Apr 30 – Oct 29 | Kitchener | Apr 30 – Oct 29 | Sarnia | Apr 30 – Oct 29 |
| Burlington | Apr 30 – Oct 29 | London | Apr 30 – Oct 29 | Sault Ste. Marie | Apr 30 – Oct 29 |
| Caledon | Apr 30 – Oct 29 | Markham | Apr 30 – Oct 29 | St. Catharines | Apr 30 – Oct 29 |
| Cambridge | Apr 30 – Oct 29 | Milton | Apr 30 – Oct 29 | St. Joseph | Apr 30 – Oct 29 |
| Chatham-Kent | Apr 30 – Oct 29 | Mississauga | Apr 30 – Oct 29 | St. Thomas | Apr 30 – Oct 29 |
| Clarington | Apr 30 – Oct 29 | Newmarket | Apr 30 – Oct 29 | Stratford | Apr 30 – Oct 29 |
| Cornwall | Apr 30 – Oct 29 | Niagara Falls | Apr 30 – Oct 29 | Temiskaming Shores | Apr 30 – Oct 29 |
| Dryden | Apr 30 – Oct 29 | Nipigon | Apr 30 – Oct 29 | Thunder Bay | Apr 30 – Oct 29 |
| Fort Frances | Apr 30 – Oct 29 | Norfolk | Apr 30 – Oct 29 | Timmins | Apr 30 – Oct 29 |
| Fort Severn First Nation | Apr 30 – Oct 29 | North Bay | Apr 30 – Oct 29 | Toronto | Apr 30 – Oct 29 |
| Goderich | Apr 30 – Oct 29 | Oakville | Apr 30 – Oct 29 | Uxbridge | Apr 30 – Oct 29 |
| Gravenhurst | Apr 30 – Oct 29 | Orillia | Apr 30 – Oct 29 | Vaughan | Apr 30 – Oct 29 |
| Greater Sudbury | Apr 30 – Oct 29 | Oshawa | Apr 30 – Oct 29 | Waterloo | Apr 30 – Oct 29 |
| Guelph | Apr 30 – Oct 29 | Ottawa | Apr 30 – Oct 29 | Welland | Apr 30 – Oct 29 |
| Haldimand | Apr 30 – Oct 29 | Owen Sound | Apr 30 – Oct 29 | Whitby | Apr 30 – Oct 29 |
| Halton Hills | Apr 30 – Oct 29 | Pembroke | Apr 30 – Oct 29 | Windsor | Apr 30 – Oct 29 |
Daylight Saving Time History in Ontario
- Ontario first observed Daylight Saving Time in 1908.
- Ontario has observed DST for 108 years between 1908 and 2024 (DST in at least one location).
- Previous time with no Daylight Saving Time was 1917.
- See Worldwide DST Statistics