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posted by Fnord666 on Friday August 28 2020, @12:27PM   Printer-friendly
from the I'll-sleep-to-that dept.

American Academy of Sleep Medicine calls for elimination of daylight saving time:

The AASM supports a switch to permanent standard time, explaining in the statement that standard time more closely aligns with the daily rhythms of the body's internal clock. The position statement also cites evidence of increased risks of motor vehicle accidents, cardiovascular events, and mood disturbances following the annual "spring forward" to daylight saving time.

"Permanent, year-round standard time is the best choice to most closely match our circadian sleep-wake cycle," said lead author Dr. M. Adeel Rishi, a pulmonology, sleep medicine and critical care specialist at the Mayo Clinic in Eau Claire, Wisconsin, and vice chair of the AASM Public Safety Committee. "Daylight saving time results in more darkness in the morning and more light in the evening, disrupting the body's natural rhythm."

[...] "There is ample evidence of the negative, short-term consequences of the annual change to daylight saving time in the spring," said AASM President Dr. Kannan Ramar. "Because the adoption of permanent standard time would be beneficial for public health and safety, the AASM will be advocating at the federal level for this legislative change."

Journal Reference:
Muhammad Adeel Rishi, MD, et. al. Daylight saving time: an American Academy of Sleep Medicine position statement, Journal of Clinical Sleep Medicine (DOI: 10.5664/jcsm.8780)


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  • (Score: 2) by Runaway1956 on Friday August 28 2020, @07:29PM (5 children)

    by Runaway1956 (2926) Subscriber Badge on Friday August 28 2020, @07:29PM (#1043485) Journal

    It took me awhile to adapt to Julian dates in the Navy, mostly used for accounting and logistics. Having learned it, I've never needed it after leaving the Navy. Never. The few times I've ever mentioned it, people just look at me like I'm speaking Klingon, or Mandarin or something.

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  • (Score: 0) by Anonymous Coward on Friday August 28 2020, @09:48PM (4 children)

    by Anonymous Coward on Friday August 28 2020, @09:48PM (#1043524)

    Why were they using Julian dates? The Gregorian calendar was a thing for centuries by the time the US Navy was a thing and seems to only differ by being nearly 2 weeks behind.

    • (Score: 3, Interesting) by Runaway1956 on Friday August 28 2020, @10:04PM (3 children)

      by Runaway1956 (2926) Subscriber Badge on Friday August 28 2020, @10:04PM (#1043528) Journal

      The calendar we used wasn't "two weeks behind". It started over each year, with Jan 1 being day 001, and advancing sequentially day by day.

      https://d3cr2yckdwspg4.cloudfront.net/wp-content/uploads/2016/06/Julian-Date-Calendars-and-Military-24-Hour-Clock.pdf [cloudfront.net]

      • (Score: 1, Informative) by Anonymous Coward on Saturday August 29 2020, @01:25AM (1 child)

        by Anonymous Coward on Saturday August 29 2020, @01:25AM (#1043579)

        The confusion comes from calling it "Julian [wikipedia.org]" instead of "ordinal [wikipedia.org]".

        Without an astronomical or historical context, a "Julian date" given as "36" most likely means the 36th day of a given Gregorian year, namely February 5. ... This is why the terms "ordinal date" or "day-of-year" are preferred.

        • (Score: 0) by Anonymous Coward on Saturday August 29 2020, @02:48AM

          by Anonymous Coward on Saturday August 29 2020, @02:48AM (#1043617)

          Nobody uses "ordinal date", a solution to a non-problem.
          If I say "Julian calendar" or "Gregorian calendar", there is no possible interpretation this could be an "ordinal date".
          If I say "Julian date 25 Dec 1301", again, there can be no confusion.

      • (Score: 2) by VLM on Tuesday September 01 2020, @12:45PM

        by VLM (445) Subscriber Badge on Tuesday September 01 2020, @12:45PM (#1044881)

        Thats Army Modified Julian Dates aka MJD or AMJD like you'd see written on MRE packages. First digit is last digit of year, then count the day of the year.

        Actual JDs are "days since something-4700bc" and the advantage is you can always near instantly find out how old something is in days using subtraction without the usual calendar foolishness, which admittedly is automated away now.

        So JD 352515 (pretend thats today) minus 352315 (pretend the butter in your fridge was made that day) means that today its two hundred days old for supply purposes. Is 200 day old butter kept in an army kitchen fridge edible or not? damn if I know but I'm sure there's a regulation somewhere.

        In practice its like a reg comes out that all butter with a JD before 352335 (aka 180 days or six months) is now officially legally expired and needs to be safely disposed of.