Leading zeroes have obviously nothing to do with my question. Reordered integers did though.

You'd be surprised but people in Europe also don't say "sixteen o'clock", they say "four" or "seven in the evening" if it is ambiguous. But at the same time the physical clocks and texts between people have completely clear and unambiguous time, one can understand it instantly. Why with British/USA time, when the clock is between 12 and 1, I always need to stop and analyze which of the bullshit time segments it is referencing, because of the wrong order of numbers, starting at 12, then going back to 1, then forward to 2 etc.