24:00 is a real time. See: https://en.wikipedia.org/wiki/24-hour_clock#Midnight_00:00_and_24:00 https://en.wikipedia.org/wiki/24-hour_clock#Midnight_00:00_a...

24:00 is a real time. See: https://en.wikipedia.org/wiki/24-hour_clock#Midnight_00:00_and_24:00 https://en.wikipedia.org/wiki/24-hour_clock#Midnight_00:00_a... > there is no time in hour 24 Doesn't matter. 24 marks the end of the day. One advantage of using 24 instead of 0 is it makes it immediately obvious that this is a 24 hour clock. Otherwise you have to read the 0, see the 23 next to it, and infer that it's 24 hours, which takes a moment if you are not expecting it.