javascript date and hour code example

Example 1: javascript make new date from hour

// Like Fri, 26 Sep 2014 18:30:00 GMT
var today = new Date();

var myToday = new Date(today.getFullYear(), today.getMonth(), today.getDate(), 0, 0, 0);

Example 2: javascript get hour from date

var myDate = new Date(2019, 11, 24, 10, 33);
var hour = myDate.getHours();