Clocks Fall Back November 1: Headlight and Visibility Checks for Thornhill Drivers

Daylight saving time was one of the most-searched topics in Canada this week. On October 26, 2026, The Weather Network reported that British Columbia, Alberta, Manitoba and parts of northwestern Ontario have moved to permanent daylight time, while most of Ontario, including the GTA, will keep changing the clocks twice a year.

For drivers in Thornhill, that means clocks still fall back one hour at 2 a.m. on Sunday, November 1. From Monday, November 2, many evening commutes along Highway 7, Yonge Street and the 407 will happen in the dark. Shorter days, wet leaves, rain and the first frosty mornings all arrive together, so this is a good week to make sure you can see clearly and be seen.

Why the time change matters for drivers

The clock change does not make roads more dangerous by itself, but it suddenly moves the drive home into darkness. Your eyes have less to work with, pedestrians and cyclists are harder to spot, and wildlife is more active around dusk. Small problems that are easy to ignore in daylight, like a dim headlight, a hazy lens or a streaky windshield, become much more noticeable once you are driving at night.

1. Walk around the car and check every light

Park facing a wall or garage door in the evening and turn on your headlights. Check low beams, high beams, fog lights if you have them, turn signals, brake lights, reverse lights and the licence plate light. A second person helps for brake lights, or you can watch the reflection in a window. A burnt-out bulb is easy to miss from the driver’s seat, and many cars only warn you about some of them.

2. Do not rely on daytime running lights

On many vehicles, daytime running lights make the front of the car look lit while the tail lights stay off. A bright dashboard can make it easy to forget. Ontario’s rules call for headlights and tail lights from half an hour before sunset to half an hour after sunrise, and any time visibility is poor. Setting your light switch to “Auto,” if your car has it, is a simple habit for the darker months.

3. Look at cloudy or yellowed headlight lenses

Plastic headlight lenses fade and turn cloudy with age and sun exposure, which scatters light and cuts down how far you can see. Moisture or fogging inside the housing is a different issue: it can mean a cracked lens or failed seal, sometimes from a minor bump. A housing that lets water in can lead to repeated bulb failures and electrical problems.

4. Make sure your headlights are aimed correctly

If oncoming drivers flash their lights at you, or your beams seem to light up the treetops or only the first few metres of road, the aim may be off. Headlight aim can shift after a front-end collision, a bumper or grille repair, a replaced housing, or even a hard pothole hit that disturbs the mounting points. Many newer vehicles also have cameras and sensors near the headlights and grille, so front-end damage can affect more than the lights themselves. Our article on modern collision repair and driver-assistance systems explains why.

5. Clear up the glass and wipers

At night, oncoming headlights turn every streak, chip and film of grime on the windshield into glare. Clean the inside of the glass, replace wipers that chatter or leave streaks, and top up with a winter washer fluid before the first freeze. Small chips can spread with temperature swings, so read our guide on windshield chips before cold weather if yours has one.

6. Adjust your driving for darker, wetter roads

For the first couple of weeks after the time change, give yourself extra following distance and slow down near intersections, school zones and transit stops where pedestrians may be wearing dark clothing. Watch for deer and other wildlife at dusk on the edges of Thornhill and in the more rural parts of York Region. Dim your high beams for oncoming traffic and when following another vehicle, and keep your mirrors adjusted so headlights behind you do not blind you.

When to see a shop

Book an inspection if you notice any of these:

• A headlight, tail light or brake light is out, flickers or keeps burning out
• Water, fog or condensation inside a headlight or tail light housing
• Headlights that look uneven, point too high or too low, or draw flashes from other drivers
• A cracked or loose light housing, bumper or grille after a minor collision
• A bulb, lighting or driver-assistance warning on the dashboard
• Wipers that streak, a weak defroster, or a chipped or cracked windshield

If you have already had a collision this fall, our step-by-step guide to what to do after a car accident in Ontario covers the next steps. For overall cold-weather preparation, see our winter car prep checklist.

Lighting, visibility and collision repair in Thornhill

The clocks change once, but the dark drives last all winter. ZhoopZhoop Collision & Mechanical in Thornhill helps drivers from Vaughan, Richmond Hill, Markham and across the GTA with mechanical repair and diagnostics, bulb and lighting checks, and collision repairs to bumpers, grilles and headlight areas, including driver-assistance calibration when it is needed. Call 905-886-2737 or stop by our shop at 47 Guardsman Road to have your lights and visibility checked before the darker commutes begin.

Related guides

• Small Bumper Damage After a Parking-Lot Collision: Hidden Damage & Sensors – A parking-lot bump can hide broken brackets, absorbers, wiring and sensor damage behind the bumper cover.
• Hit a Pothole? Signs Your Vehicle May Need an Inspection – Hit a pothole or curb? Watch for pulling, vibration, an off-centre wheel or uneven tire wear.
• EV Winter Maintenance in Thornhill: What to Check Before Cold Weather – How cold weather affects EV range, tires, brakes and charging, plus a pre-winter checklist for Thornhill and GTA electric-vehicle owners.
• Why Small Paint Damage Should Be Repaired Before Winter – Small paint chips and scratches can turn into rust once road salt and moisture arrive.

Browse all ZhoopZhoop driver guides →