title: Rails - Setting time_zone dynamically as per user selection
body: <p>I appreciate your help one of the features working on for my new website!</p>
  
  <p>This is regarding the dynamic time_zones as per the requirement user would be able to choose from set of pre-defined time_zones say us_zones. When the user picks the zone the entire site should be set/updated to TimeZone.</p>
  
  <p>However, at present the new time zone is not becoming updated into Apache and the updation of time zone happens only at the restart of the server.</p>
  
  <p>I was thinking in the lines of using Rails Initializer class and initialize_time_zone() methods, but even this requires the rails server to be restarted.</p>
  
  <p>Thanks in advance!</p>