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darkar
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I am curious about this, why we set 24 hours per day, 60 secs per minute?
darkar said:I am curious about this, why we set 24 hours per day, 60 secs per minute?
But then it has to turn a little bit more to keep up with the motion around the sun -> 24 hours in a (mean solar) day.johnchao said:24 hours in a day is not accurate. The Earth turns around in 23.93 hours.
johnchao said:Mean solar day is 23 hours 56 min 1.09 sec. = 23.9336361 hours.
Compared to what?johnchao said:There is a difference of 3 min.58.91 sec. per day in the watch or clock.
You are right. I am confused.EL said:Compared to what?
Compared to a siderial day, yes!
But not compared to a solar day (i.e. an ordinary day)!
franznietzsche said:A wizard did it.
cyrusabdollahi said:He tutors me on my HW.
franznietzsche said:That was an 8-bit theater joke, incidently.
How was this thread resurrected? Wtf mate?
I can't make the same necroposting-necrophilia-morrowind joke twice in the the same month.
cyrusabdollahi said:You're no fun.
There are 24 hours in a day.
The concept of 24 hours in a day dates back to ancient civilizations such as the Egyptians and Babylonians who used a base 60 numbering system. This led to the division of a day into 24 hours, with each hour consisting of 60 minutes and each minute consisting of 60 seconds.
No, the length of a day has not always been 24 hours. In fact, the Earth's rotation is gradually slowing down, causing days to be slightly longer than 24 hours. However, this change is only noticeable over a long period of time and is currently being compensated for by the addition of leap seconds.
The 24-hour clock, also known as military time, is used in many countries for practical reasons. It eliminates the confusion of using AM and PM and allows for easier coordination in international communication and transportation.
Yes, the concept of 24 hours in a day is recognized and used globally. However, some cultures may have different ways of dividing a day into smaller increments, such as the Chinese tradition of dividing a day into 12 two-hour periods.