Poll for 24 hour clock fans:
A) Midnight at the top
B) Noon at the top
X) Midnight as 24 (or XXIV)
Y) Midnight as 00

@th clocks for energy utilities run from 00:00:01–24:00:00 and the first hour is designated 1, so I'm here for this.

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@scruss some transit systems use hours greater than 24 for trains that run after midnight on the same "_service day_". developers.google.com/transit/

@th the lovely old printed DB timetables had those all over the place.

Military watches that went over midnight used 24+ time too, in order to simplify pay accounting. Simplifying accounting is also why utility time does it too: the hour reading at 24:00 "belongs" with the current day, not the next. Avoids off-by-ones entirely

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