JSFiddle - React, Tailwind, and code Playground

JavaScript

var strt_date  = '31/03/2014 23:02:01';
var end_date  = '01/04/2014 05:02:05';

    if((new Date(strt_date)).getTime() < (new Date(end_date)).getTime())
    {
        alert("End datetime Cannot Be Less Than start dateime");

        return false;

    }