Validating DatetimeFields in SharePoint 2010 List Form PreSaveAction Call

Question

I want to perform a validation for today's date and user entered date in my custom list form's multiple datetime fields

ReqstRecvdDate Field

DueByDate field

ReqstRecvdDate can not be greater than today's date.It can be equal to today's date or less than today's date.

if RecvdDate>=Today , I need to prevent user from saving the form- presaveaction call.

Also DueByDate field, which has to be greater than ReqstRecvdDate Field. I added the below code, but the validation is not working when

a) I selected 31-Oct-2015 as ReqstRecvdDate & I selected DueByDate field as 01-Dec-2015. As per the rule it's set to true and should allow me to save the form, but this didn't happen.

       <script language="javascript" 
       src="/project/EASAssetsLib/jquery-1.6.0.min.js" 
       type="text/javascript"></script><script language="javascript" 
         src="/project/EASAssetsLib/jquery.SPServices-
        2014.01.min.js" type="text/javascript"></script><script 
     language="javascript" 
        src="/project/EASAssetsLib/prototype.js" 
       type="text/javascript"></script><script language="javascript" 
       src="/project/EASAssetsLib/SPUtility.js" 
       type="text/javascript"></script><script language="javascript" 
        type="text/javascript">

     function PreSaveAction()
      {
       var reqstrecvddatethrusputility = SPUtility.GetSPField('Request 
       Received Date').GetValue(); 
      var reqsteDateStr=reqstrecvddatethrusputility.toString();
      var mon1  = reqsteDateStr.substring(0,2); 
       var dt1 = reqsteDateStr.substring(3,5); 
       var yr1  = reqsteDateStr.substring(6,10);  
       temp1 = mon1 + "/" + dt1 + "/" + yr1;
       var dtReqstRecvdDate = new Date(temp1);
       var reqstRecvdDateInUTC = dtReqstRecvdDate.toUTCString();
        var currentTime = new Date();
       var CurDateInUTC = currentTime.toUTCString();
      dt3 = new Date(reqstRecvdDateInUTC);
      dt4 = new Date(CurDateInUTC);
   if(dt3 > dt4 )
     {
       alert('Received Date cannot be greater than Todays  
               Date!');
       return false;
     } 

Due to some reason,month range is not getting recognized properly.

What I need to change in my code to do the right validation?

Answer 1

Doing String operations on Dates is never a good habit.

You are adding so many libraries allready.
Adding momentJS to make date calculations a breeze won't be an issue..

Your Month problem is probably because in JavaScript january === 0 , thus december === 11