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Deadly heart attacks are more common on a Monday

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239 points giuliomagnifico | 1 comments | 06 Jun 23 13:19 UTC | HN request time: 0.345s | source
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HL33tibCe7 ◴[06 Jun 23 14:01 UTC] No.36212914[source]▶
Deadly heart attacks are also more common on days when the clocks go forward. It’s to do with lack of sleep, apparently.
replies(1): >>36213963 #
SketchySeaBeast ◴[06 Jun 23 15:06 UTC] No.36213963[source]▶
> when the clocks go forward

I had a moment trying to figure out when the clocks moved backwards before I remembered DST is a thing.

replies(1): >>36214233 #
shagie ◴[06 Jun 23 15:22 UTC] No.36214233[source]▶
I once worked in a computer lab for a graveyard shift on the weekend (midnight to 10am).

One early Sunday morning the clock started making noise. Chunk. Chunk. Chunk. Chunk. Moving the minute hand rapidly. It kept going and going and going.

The clock can only go forward. In order to set the time back 1 hour it had to advance the clock 23 hours, one minute at a time.

This also confused payroll when I handed in my time sheet.

    12:00 AM -  3:00 AM (3h)
     2:00 AM - 10:00 AM (8h)
They also had trouble when I did

   12:00 AM - 10:00 AM (9h)
But they figured that it was going to be easier to just pay me an extra hour ($7.50 then) than it would have been to try to correct it.
replies(1): >>36217681 #
itronitron ◴[06 Jun 23 19:12 UTC] No.36217681[source]▶
A better solution would be to have the clock turn itself off, wait an hour, and then turn itself back on again.
replies(1): >>36218244 #
1. shagie ◴[06 Jun 23 19:53 UTC] No.36218244[source]▶
This was a centrally controlled clock. When the master clock sent a pulse, all the clocks would advance 1 minute.

These were synchronized wired clocks ( https://www.natsco.net/industries-served/industries-served-o... /// https://blog.american-time.com/wireless-master-time-clock-vs... ).

> Schools traditionally used wired clock systems for two basic reasons: rock solid reliability and the ability to synchronize school bells to the rest of the system. The wired synchronized system ensured that clocks would all read the same time and bells would ring at the same time every day, no matter what classroom you were in, and that students would arrive to class on time — something teachers could only dream of before installing a synchronized system.