Clocks fall back tonight and the heating season starts the same week — expect a CO and dark-shift double-up
The change to standard time lands alongside the first sustained cold snap of the year, and both feed call types you'll see this week.
Clocks go back one hour overnight into Sunday, 1 November. Sunset moves earlier. From Monday on, the evening commute and the school run happen in the dark, and so do a share of the collisions, pedestrian strikes and falls that come with them. The clock change does not alter how tired people are at the wheel — it just moves the low-light window into the hours when the roads are busiest.
The same week marks the point where most households run their heating hard for the first time. That is the carbon monoxide window. Furnaces, flueless heaters, generators run in garages, and vehicles left idling in attached spaces are the usual sources. CO calls read as flu, as a headache that clears when the person leaves the building, as a whole household feeling unwell at once. Treat a multi-patient call from a single address with that in mind, and check your own meter before you commit crews into an unknown atmosphere.
Overnight temperatures dropping below freezing bring the first black ice of the season, worst on bridges, overpasses and shaded bends that stay frozen after open road has cleared. Expect it on early calls before the sun is up.
Three practical points for the shift. One: the extra hour is on the overnight roster, so the long shift runs into the dark morning — plan rest and relief accordingly. Two: swap batteries and bump-test CO and gas monitors now, not on the first bad call. Three: if your service runs smoke and CO alarm checks, this is the week the public asks, and the week it matters most.
For local timing and any cold-weather or air-quality advisory, work from your own weather service and dispatch feeds rather than a general outlook — conditions and thresholds differ by area, and early figures move.
