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Great argument for using the 24h clock ;-)


Ever seen the 24h analog clock? :)

https://m8y.org/images/24.svg


Related, I made a little toy[0] that lets you explore what analog clocks would like with an arbitrary number of hours in the day (since 12/24 is of course arbitrary too).

[0]: https://nadavrecca.com/eleventhour


12 may be an arbitrary number but with all it's numeric factors it sure is a convenient one!


I've been staying at that click for a solid ten minutes, but I can't figure out why minutes and seconds start on top, but hours on the bottom. Any idea why that particular choice was made?


From the sibling comment's link: "Noon is at the top, so that the hour hand mimics the path of the sun."


Adding additional info to my sibling comments. Since the bottom is designed to show night, it would be cool to grab a geolocation and draw the bottom based on sunrise/sunset times.


the 24 hour clocks I've seen usually are set up like this so daytime is the top half and night time the bottom - as though the tip of the hour hand was the sun


This is very nice as it addresses the zero-index nature of time by going 0-23 instead of 1-24. Time would be much more comprehensible if all clock were marked that way.


Hm, I think most countries that use 24h time systems use 00:00:00 to 23:59:59


Ok, it is interesting that the top of 12h clocks in those countries is often a 12 instead of a zero [0]. Maybe the tension of a cardinal zero in an ordinal world (i.e. 1900 is the 20th century) lead the Swiss Railway to de-number the 12h clock [1].

0. https://commons.wikimedia.org/wiki/File:Gare_de_Lyon_xCRW_13...

1. https://en.wikipedia.org/wiki/Swiss_railway_clock


I have the widget on my phone, it uses local sunrise/sunset to adjust the nighttime shaded area: https://play.google.com/store/apps/details?id=info.staticfre...




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