title: TimeZoneInfo from timezone minutes offset
body: <p>From JavaScript I have passed, to the controller, the number of minutes that the user's client date time is offset from UTC using the method <code>getTimezoneOffset</code> on the <code>Date</code> object.  Now that I have this information on the server side I'd like to create a TimeZoneInfo from it.  How is this possible?  If this is not possible then how can I convert UTC dates on the server side into the client's timezone using the minutes offset?</p>