Research shows clock changes disrupt sleep patterns. Experts urge reinstating Standard Time year-round to enhance circadian health and overall well-being.
By Priyanjana Pramanik, MSc.Reviewed by Lily Ramsey, LLMOct 25 2024 Sleep specialists highlight how twice-yearly clock changes disrupt circadian rhythms, recommending year-round standard time for better health and well-being.
History of Daylight Saving Time Daylight Saving Time , also known as British Summer Time, shifts clocks forward by one year in late March and back again in late October. Before DST was implemented, the United Kingdom used Standard Time or Greenwich Mean Time throughout the year, aligning with natural daylight patterns.
Seasonal changes affect sunrise and sunset times more in the north of the country, which experiences particularly late sunrises in winter, reducing morning sunlight exposure before work and school. DST does not provide more sunlight; rather, it shifts schedules to make greater use of evening light, reducing morning light. In summer, this change is not a significant issue because of earlier sunrises, but with permanent DST in winter, it could lead to less natural light in the mornings.
The Case for Standard Time Clock changes in March and October disrupt sleep and circadian rhythms. The spring shift results in sleep loss and short-term health issues like decreased productivity and safety risks.
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