momentjs sub days code example
Example 1: moment format heure
var time = "15:30:00";
var formatted = moment(time, "HH:mm:ss").format("LT");
console.log(formatted);
//it will return 3:30 PM
Example 2: moment.set
moment().set('year', 2013);
moment().set('month', 3); // April
moment().set('date', 1);
moment().set('hour', 13);
moment().set('minute', 20);
moment().set('second', 30);
moment().set('millisecond', 123);
moment().set({'year': 2013, 'month': 3});