Time Change in Quebec: Bringing Scientific Insight to the Debate

October 29, 2026

The Quebec government has announced its intention to introduce a bill to end seasonal time changes.

This again raises perennial and unresolved questions about the effects adopting permanent standard or daylight-saving time has on human sleep and health.

Two Concordia sleep and neuroscience researchers can provide insight into the consequences of changing the clocks and the potential effects of maintaining a permanent time schedule. 

Mathilde Reyt
Postdoctoral researcher- Sleep, Cognition and Neuroimaging Research Laboratory (SCNLab)
mathilde.reyt@concordia.ca

Arsenio Paez
Postdoctoral researcher at the Sleep, Cognition and Neuroimaging Research Laboratory (SCNLab) and Senior Lecturer in Neuroscience
arsenio.paez@concordia.ca