How to convert time from 24 hour format to 12 hour format using javascript?

Question

The function returns the time in 24 hour format.

function fomartTimeShow(h) {
    return h < 10 ? \"0\" + h + \":00\" : h + \":00\";
}

Answer 1

I'm pretty sure this will work as an even more concise formulaic version of Ben Lee's answer, including for the h=0 and h=12 cases:

function fomartTimeShow(h_24) {
    var h = ((h_24 + 11) % 12)+1;
    return (h < 10 ? '0' : '') + h + ':00';
}

or including am/pm:

function fomartTimeShow(h_24) {
    var h = ((h_24 + 11) % 12)+1;
    return (h < 10 ? '0' : '') + h + ':00' + (h_24 < 12 ? 'am' : 'pm');
}