How to set cookies to expire in 30 minutes in JavaScript?

You can extend the life of a cookie beyond the current browser session by setting an expiration date and saving the expiry date within the cookie. This can be done by setting the ‘expires’ attribute to a date and time.


You can try to run the following example to set cookies to expire in 30 minutes

Live Demo

            function WriteCookie() {
               var now = new Date();
               var minutes = 30;
               now.setTime(now.getTime() + (minutes * 60 * 1000));
               cookievalue = escape(document.myform.customer.value) + ";"

               document.cookie="name=" + cookievalue;
               document.cookie = "expires=" + now.toUTCString() + ";"
               document.write ("Setting Cookies : " + "name=" + cookievalue );
      <form name="myform" action="">
         Enter name: <input type="text" name="customer"/>
         <input type="button" value="Set Cookie" onclick="WriteCookie()"/>

Updated on: 09-Jan-2020

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