Answers for "moment calcule date"

moment calculate duration

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

datetime to date moment

//date time to date momentjs
var support_date = new Date("2021-10-23 00:00:00");
support_date = moment(support_date).format("YYYY-MM-DD");

//output:"2021-10-23"