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by philwelch
767 days ago
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> The difference of an hour does make a difference, as sleep researchers and chronobiologists keep pointing out every time a discussion on DST comes up (it is not just about the sudden time jump, but also about the actual time) Do any of these sleep researchers have anything to say about France using CET instead of GMT even though CET is about an hour off from their natural time? Or Spain being on CET despite being almost another hour off from France? Furthermore, how long is it going to take for the accumulated leap seconds to add up to a full hour of time? My understanding is that it’s on the order of centuries. If humanity can maintain an industrialized civilization that’s capable of keeping track of leap seconds for that long, most of us won’t even be living on the earth by the time it makes any difference. |
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Perhaps ask French Sleep Research and Medicine Society (Société Française de Recherche et Médecine du Sommeil):
* https://www.sfrms-sommeil.org
* https://esrs.eu/national-sleep-society/france/
See also Spain:
> Human rhythmicity is subjected to the workings of the internal circadian clock, but it is also influenced by environmental time (mainly the light-dark cycle) and social timing imposed by the official time at our location, as well as by our work schedule. When a misalignment among these times occurs, an internal order impairment appears, which affects our health. Western Spain (GMT+1/+2) and Portugal (GMT0/+1) share similar longitudes (sun time) but have different official times, and thus they provide a “natural experiment” to assess how this discrepancy affects circadian rhythmicity and sleep in people with no work duties (>65 years). Although sleep duration was not affected, the circadian rhythms in the Portuguese were more robust, especially during weekdays, while higher desynchronization tended to occur in the Spaniards. Once official time was corrected by GMT0, meals took place later in Spain than in Portugal, especially as the day progressed, indicating the possible deleterious effect on circadian system robustness when official time is misaligned with its corresponding geographical time zone.
* https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9404853/