number converted to minutes and seconds javascript code example

Example 1: javascript convert seconds to minutes seconds

function convertHMS(value) {
    const sec = parseInt(value, 10); // convert value to number if it's string
    let hours   = Math.floor(sec / 3600); // get hours
    let minutes = Math.floor((sec - (hours * 3600)) / 60); // get minutes
    let seconds = sec - (hours * 3600) - (minutes * 60); //  get seconds
    // add 0 if value < 10; Example: 2 => 02
    if (hours   < 10) {hours   = "0"+hours;}
    if (minutes < 10) {minutes = "0"+minutes;}
    if (seconds < 10) {seconds = "0"+seconds;}
    return hours+':'+minutes+':'+seconds; // Return is HH : MM : SS
}

Example 2: javascript minute and second to convert seconds

function str_pad_left(string,pad,length) {
    return (new Array(length+1).join(pad)+string).slice(-length);
}

var finalTime = str_pad_left(minutes,'0',2)+':'+str_pad_left(seconds,'0',2);