title: Setting user's timezone on session using devise in ruby on rails
body: <p>I have made a hidden field on login form which contain user timezone and now i want to set it on that user session. I'm using devise for authentication. When using <code>params[:hiddenfieldname]</code>  values are not accessible in the controller where I'm redirecting the user to home page. Please tell me what are the steps I'm missing.</p>