how to check what month it is using moment code example

Example 1: moment to javascript date

let now = moment()
let now = now.toDate()

Example 2: moment get day

var check = moment(n.entry.date_entered, 'YYYY/MM/DD');

var month = check.format('M');
var day   = check.format('D');
var year  = check.format('YYYY');