The twelve-hour clock

Problem

Your phone shows the hour from 0 to 23, but that's not how you say it. Write a function that takes that hour and returns the everyday text: 13 gives "1 pm", 8 gives "8 am" and 23 gives "11 pm".

Watch the two that trip everyone up: 0 is "12 am" (midnight) and 12 is "12 pm" (noon).

Examples

• 13 → "1 pm"

• 8 → "8 am"

• 23 → "11 pm"

Besides these, the challenge has hidden tests that are revealed when you submit your solution.

You start with this

def twelve_hour(hour):
    pass

function twelveHour(hour) {
}