what is the default expiration time of a cookie

Question

By default what will be the expiration time of a cookie added using C# code?

    HttpCookie myCookie= new HttpCookie("myCookie");
    myCookie.Value = txtCookie.Text;       
    // Add the cookie.
    Response.Cookies.Add(myCookie);

score 43 · Accepted Answer · answered Sep 25 '13 at 10:24

43

The default Expires value for a cookie is not a static time, but it creates a Session cookie. This will stay active until the user closes their browser/clears their cookies. You can override this as required.

From the linked page:

Setting the Expires property to MinValue makes this a session Cookie, which is its default value

answered Sep 25 '13 at 10:24

CodingIntrigue

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And the session cookie expires in 14 days by default (in Owin), see code here https://github.com/yreynhout/katana-clone/blob/master/src/Microsoft.Owin.Security.Cookies/CookieAuthenticationOptions.cs#L24 – Tomas Kubes Nov 22 '17 at 11:00
It's not specific to C#, right? It's default behaviour in browsers as well? Like when you do `document.cookie = 'asd=123'` it persists till you close the browser too unless you specified an expiration time? – Klesun May 01 '20 at 11:20

score -12 · Answer 2 · edited Apr 21 '16 at 11:49

-12

20 minutes.
In IIS, click on your website, and go to Session State. In the second box (Cookie Settings), you can change the time out(in minutes).

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edited Apr 21 '16 at 11:49

Community

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answered Sep 25 '13 at 10:36

Cameron Castillo

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I downvoted this because this is for the Session cookie. This will not affect the timeout in the code shown in the original answer. – CodingIntrigue Oct 07 '13 at 07:02
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And this timeout is probably for the server-side *session* timeout. This has *nothing to do* with cookie expiry time. – Laurent Grégoire May 28 '15 at 07:38

what is the default expiration time of a cookie

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