It's time to set your clocks back. Before you go to bed tonight, you should set your clocks back an hour, as well as check the battery in your smoke alarms.
Kenora fire chief Todd Skene talks about the dangers of carbon monoxide.
"Carbon monoxide is known as a silent killer, because it's invisible, tasteless and an odourless gas that moves throughout your house," he says.
For the night owls, the clocks fall back at 3 in the morning Central Daylight Time.