[Community Puzzle] Railway Station Clock

Coding Games and Programming Challenges to Code Better

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Created by @hypers,validated by @irmo322,@Rouge_dragon and @Lucasgood.
If you have any issues, feel free to ping them.

Never realized before this puzzle that the AM/PM conventions were so weird.

The transitions …, 11AM, 12PM, 1PM, … and …, 11PM, 12AM, 1AM, … don’t make sense at all.

I wonder why they didn’t they use the following conventions: NOON = 0PM, MIDNIGHT = 0AM?

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Because traditionally zero was not considered a proper number. (See: 1 BC followed by 1 AD…)

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Neither 1 by Euclid himself.

True. This was one of the reasons for me to create the puzzle. Based on a real-world situation I was thinking that was so confusing that could be a puzzle itself. But I wanted to add a little more with backward delay calculations.