Data do momento Adicionar
var new_date = moment(startdate, "DD-MM-YYYY").add(5, 'days');
Attractive Addax
var new_date = moment(startdate, "DD-MM-YYYY").add(5, 'days');
var newDate = moment().add(1, 'hours').add(10,"m");
//years or y
//quarters or Q
//months or M
//weeks or w
//days or d
//hours or h
//minutes or m
//seconds or s
//milliseconds or ms
var date = "2017-03-13";
var time = "18:00";
var timeAndDate = moment(date + ' ' + time);
console.log(timeAndDate);