Let us see an example on how calculate difference between dates using Javascript. First write a HTML code with Javascript as below:
<!DOCTYPE html>
<body>
<script type="text/javascript">
var d1 = new Date("12/12/2013");
var d2 = new Date("12/12/2014");
var timeDiff = d2.getTime() - d1.getTime();
var DaysDiff = timeDiff / (1000 * 3600 * 24);
document.write("Days of difference between <br>"+d1+"<br> and <br>"+d2+" is:<br> " +DaysDiff);
</script>
</body>
</html>
- The above program is used to calculate the days of difference between two dates .
- we have set two dates to two variables in the program var d1 = new Date(“12/12/2011”); and
var d2 = new Date(“12/12/2014”); and then we have calculated the difference of days between
these two dates. - var timeDiff = d2.getTime() – d1.getTime(); is used to calculate the time difference
of the date. - var DaysDiff = timeDiff / (1000 * 3600 * 24); is used to calculate the difference
between the two days by dividing the time difference value with (1000 * 3600 * 24) i.e.
1000 millisecond , 3600 minutes and 24 hours. - document.write(“Days of difference is:” +DaysDiff); is used to display the days.
JavaScript Difference Between Two Dates Demo
- Save the file as date_diff.html in your system.
- Just open the file in the browser, you will see the below picture in the browser. Note that the browser must support HTML specification.
When the execution process is completed successfully we will get the following output:
JavaScript Random Number