1250 минут до часов
Hour = Number of Mintues / 60
Suhas JK
Hour = Number of Mintues / 60
function addMinutesToTime(time, minsAdd) {
function z(n){
return (n<10? '0':'') + n;
};
var bits = time.split(':');
var mins = bits[0]*60 + +bits[1] + +minsAdd;
return z(mins%(24*60)/60 | 0) + ':' + z(mins%60);
}
result=addMinutesToTime('5:31',30);
alert(result);