Skip to main content

Comparing two date in JavaScript

This is an article to show how to calculate two date difference using JavaScript.

By subtracting two date java script returns difference in milliseconds so if we want to show difference in days then we have to convert milliseconds value into days by multiplying some factor.

Milliseconds * 1000 = Seconds
Seconds * 60 = Minutes
Minutes * 60 = Hours
Hours * 24 = Days

How to Use this code:-

Just copy and paste Java Script code given bellow and pass the parameters that is id's of Startdate textbox and EndDate textbox.

function Test(tbStartDateID, tbEndDateID) {

    var startDate = document.getElementById(tbStartDateID).value;
    var endDate = document.getElementById(tbEndDateID).value;

    //Difference in milliseconds

    var timeDiff = Date.parse(endDate) - Date.parse(startDate);
    if (Date.parse(endDate) > Date.parse(startDate)) {
        //show the date diffrent in Days in two no of fraction no.

        daysDiff = Math.round(Math.abs(timeDiff / (1000 * 60 * 60 * 24)) * 10);
        alert(Math.abs(daysDiff / 10) + ' Days');

        //Show the date diffrent in Month
        alert(Math.abs(daysDiff * 30 / 10) + ' Month')
    else {
        alert("StartDate must be lesser than endDate");


Popular posts from this blog

Merging multiple PDFs using iTextSharp in c#

In this article i will show you how to merge multiple pdfs into one using ITextSharp below is the two approach one is to pass your input files path, output file path (will be created if not exist) and another is pass direct input stream, output stream and it will write the merge files into output stream.

Uploading large file in chunks in Mvc c# from Javascript ajax

Often we have a requirement to upload files in, Mvc c# application but when it comes to uploading larger file, we always think how to do it as uploading large file in one go have many challenges like UI responsiveness, If network fluctuate for a moment in between then uploading task get breaks and user have to upload it again etc.

how $document.ready() is different from window.onload()

we often use window.onload() in javascript and $document.ready() in jquery and assume that both are same just jquery library wrap up javascript window.onload() and introduce $document.ready() but no there is much difference between them below is the explanation -

How to handle click event of linkbutton inside gridview

Recently I have posted how to sort only current page of gridview, Scrollble gridview with fixed header through javascript, File upload control inside gridview during postback and now i am going to explain how to handle click event of linkbutton or any button type control inside gridview.

We can handle click event of any button type control inside gridview by two way first is through event bubbling and second one is directly (in this type of event handling we need to access current girdviewrow container)