javascript get hours difference between two dates
// date1 and date2 are date objects
let hours = Math.abs(date1 - date2) / 36e5;
// The subtraction returns the difference between the two dates in milliseconds.
// 36e5 is the scientific notation for 60*60*1000, dividing by which converts
// the milliseconds difference into hours.javascript time between two times
You can just subtract the hours right away doing it this way
var valuestart = $("select[name='timestart']").val();
var valuestop = $("select[name='timestop']").val();
//create date format
var timeStart = new Date("01/01/2007 " + valuestart).getHours();
var timeEnd = new Date("01/01/2007 " + valuestop).getHours();
var hourDiff = timeEnd - timeStart;
Here's the working fiddle http://jsfiddle.net/VnwF7/4/
UPDATE - to calculate if we are including the next day. Just add the following if block
if (hourDiff < 0) {
hourDiff = 24 + hourDiff;
}
http://jsfiddle.net/gfvhqat9/Copyright © 2021 Codeinu
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