Overview
- Clocks in France move from 2:00 to 3:00 in the night of Saturday to Sunday, March 28–29, which cuts one hour of sleep.
- Sleep researchers say the one-hour jump disrupts body clocks, and studies note short-term rises in road crashes and heart events after the switch.
- France introduced seasonal time for energy savings, but Ademe now estimates the benefit at only a few hundred gigawatt-hours each year.
- The European Parliament voted in 2019 to scrap the biannual change, and the Commission has relaunched work, yet EU governments remain split on which permanent time to keep.
- Health societies and many chronobiologists favor year-round winter time that tracks solar light, while polls such as TF1’s show many people prefer permanent summer evenings.