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Health Evidence Favors Permanent Standard Time, Canadian Analysis Finds

Health researchers say permanent standard time better supports sleep and circadian rhythms, while permanent daylight saving time would keep winter mornings darker.

Summary by News Medical
Several Canadian jurisdictions are moving toward ending the twice-yearly clock change, but a new analysis published in CMAJ (Canadian Medical Association Journal) https://www.cmaj.ca/lookup/doi/10.1503/cmaj.261089 argues that eliminating the clock change is only half the decision: governments must also decide whether to adopt permanent standard time or permanent daylight saving time.

7 Articles

The theme of ending with the seasonal time change returns. Some of Canada's provinces have decided to do so. The researchers point out that the key question is not “whether to rearrange the watches”, but “what time to choose permanently.” More health arguments speak in favor of winter time.

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ohscanada.com broke the news on Monday, October 5, 2026.
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