In 2026 the clocks go back one hour on Sunday, October 25 in the UK and the EU, and on Sunday, November 1 in most of the US and Canada. Phones and laptops change on their own. The oven, the car and the light timer in the hallway do not, and neither do small children or a dog that expects breakfast at 6.
Many fire services ask people to test their smoke alarms on the weekend the clocks change, because it is a date everyone already notices. It is on this list for that reason.
If you work across the Atlantic, watch the week in between. From October 25 to November 1, 2026, New York is four hours behind London instead of five, so a recurring call set by one side lands an hour off for the other.
- Check the date the clocks change where you live — October 25, 2026 in the UK and EU, November 1, 2026 in most of the US and Canada. Most of Arizona and all of Hawaii don't change.
- Look through your calendar for meetings with people in other countries that week — From October 25 to November 1, the gap between Europe and most of the US and Canada is an hour shorter than usual.
- Start moving young children's bedtime later in small steps a few days before
- Shift pets' feeding and walk times the same way
- If you take medicine at a fixed time of day, ask your pharmacist how to handle the change
- Set the clocks back one hour on everything that doesn't update itself
- Oven, microwave and coffee maker
- Car dashboard clock
- Wall clocks, watches and bedside alarm clocks
- Heating thermostat schedule — Until you change it, the heating comes on and goes off an hour early.
- Timers on lamps, outdoor lights and sprinklers
- Check that phones, laptops and smart speakers changed on their own — A device whose time was set by hand, instead of automatically, won't.
- Test every smoke alarm with its test button
- Test carbon monoxide alarms too
- Replace any batteries that are weak or due — The alarm itself wears out too. Check the date on the back of each one and replace any unit past its replacement date.
- If you work a night shift that weekend, ask how the extra hour will be paid — One hour of that night happens twice, so a shift from 10 p.m. to 6 a.m. by the clock is nine hours long.
- Plan for darker evenings on the commute home
- Check bike lights and charge them
- Find reflective gear for children who walk home from school
- Check that porch and path lights work
- Move evening walks or runs earlier, or plan a lit route