JavaScript: Get time differences in hours between two dates

Last update on August 19 2022 21:50:50 (UTC/GMT +8 hours)

JavaScript Datetime: Exercise-45 with Solution

Write a JavaScript function to get time differences in hours between two dates.

Test Data:
dt1 = new Date("October 13, 2014 08:11:00");
dt2 = new Date("October 13, 2014 11:13:00");
console.log(diff_hours(dt1, dt2));
3

Sample Solution:-

HTML Code:

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>JavaScript function to get time differences in hours between two dates</title>
</head>
<body>

</body>
</html>

JavaScript Code:

function diff_hours(dt2, dt1) 
 {

  var diff =(dt2.getTime() - dt1.getTime()) / 1000;
  diff /= (60 * 60);
  return Math.abs(Math.round(diff));
  
 }

dt1 = new Date(2014,10,2);
dt2 = new Date(2014,10,3);
console.log(diff_hours(dt1, dt2));


dt1 = new Date("October 13, 2014 08:11:00");
dt2 = new Date("October 13, 2014 11:13:00");
console.log(diff_hours(dt1, dt2));

Sample Output:

24
3

Flowchart:

Live Demo:

See the Pen JavaScript - Get time differences in hours between two dates-date-ex-45 by w3resource (@w3resource) on CodePen.

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