moment duration days code example

Example 1: momentjs number of days between two dates

var given = moment("2018-03-10", "YYYY-MM-DD");
var current = moment().startOf('day');

//Difference in number of days
moment.duration(given.diff(current)).asDays();

Example 2: moment calculate duration

moment
 .duration(moment(endTime, 'YYYY/MM/DD HH:mm')
 .diff(moment(startTime, 'YYYY/MM/DD HH:mm'))
 ).asHours()