moment how to get date code example

Example 1: moment diff

var a = moment([2007, 0, 29]);
var b = moment([2007, 0, 28]);
a.diff(b, 'days') // 1

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});