GoKawiilCMAJ Analysis Says Permanent Standard Time Beats Permanent Daylight Saving for Health
A study published in the Canadian Medical Association Journal, led by UBC's Professor Raymond Lam, compared the health effects of permanently adopting standard time versus permanently adopting daylight saving time. The researchers concluded that permanent standard time better aligns with human circadian biology, citing the importance of morning light exposure for sleep and mood, especially in winter when permanent daylight saving would delay sunrise by an hour in cities like Toronto and Calgary.