How to compare two date values with jQuery [duplicate]

Question

This question already has an answer here:

• Age from Date of Birth using JQuery 7 answers

I have two String fields which represent Dates in my page and I would like to compare these two fields to know if my first date < second date. How can I do this?

<tr>
    <td align="right">First Date: </td>
    <td align="left"> <html:text name="addPublicationForm" styleId="firstDate" property="firstDate" maxlength="10"/></td>
</tr>
<tr>
    <td align="right">Second Date: </td>
    <td align="left"> <html:text name="addPublicationForm" styleId="secondDate" property="secondDate" maxlength="10"/></td>
</tr>

Answer 1

var startDt=document.getElementById("startDateId").value;
var endDt=document.getElementById("endDateId").value;

if( (new Date(startDt).getTime() > new Date(endDt).getTime()))
{
    ----------------------------------
}

Answer 2

If you are also using jQuery ui, in particular datepicker, you can use $.datepicker.parseDate(format, string) to turn your date strings into a JavaScript Date object, which you can then compare using the standard < and >

Answer 3

var startDate = $('#start_date').val().replace(/-/g,'/');
var endDate = $('#end_date').val().replace(/-/g,'/');

if(startDate > endDate){
   // do your stuff here...
}

Answer 4

just use the jQuery datepicker UI library and convert both your strings into date format, then you can easily compare. following link might be useful

https://stackoverflow.com/questions/2974496/jquery-javascript-convert-date-string-to-date

cheers..!!

Answer 5

Once you are able to parse those strings into a Date object comparing them is easy (Using the < operator). Parsing the dates will depend on the format. You may take a look at Datejs which might simplify this task.

Answer 6

check the solution provided here it may help, i use it in my projects. http://trentrichardson.com/examples/timepicker/ .(in the end of the page)