In my app I use Zend_Date. I have set date_default_timezone_set('UTC') because internally and in the database I only want to have UTC times.
For users I want to display it in their local time. What is the easiest way to do this? Let's say, I have in the view $user->timezone and $date, where $timezone is 'Europe/Helsinki' and $date is a Zend_Date.