Re:Map of Proposed US Time Zone Changes
by reallytho9 on Tuesday May 07, 2019 @10:57AM
(#19850049)
They have to be related because that’s what humans are concerned with. Timekeeping is meaningless if noon for you means the sun is up and noon for me means it’s the dead of night. What purpose does that serve? Timekeeping is all about where the sun is, because humans still have sleep/wake cycles, and most people obviously want to do things when the sun is up.
[ Parent
| on HN ]
Noon to me means the sun is directly overhead. When I travel the clock time of noon changes. Noon is traditionally 12:00, but it need not be. I care about local noon because adjusting my life around the local sun is a useful thing - it is very difficult to not be awake when the sun is up and sleep at night. Even if you travel a long distance you body will want to adjust to local sun patterns over the course of a month.