title: Specify time zone of log4j's date
body: <p>Is it possible to specify the time zone that log4j will use? I need the dates in the log file to be a different time zone than the application's. log4j's <code>PatternLayout</code> uses <code>SimpleDateFormat</code>. Unfortunately there doesn't appear to be a way to control <code>SimpleDateFormat</code>'s time zone via the pattern string (<code>DateFormat</code> has <code>setTimeZone</code> method but that doesn't help).</p>
  
  <p>I looked at log4j's source and <code>SimpleDateFormat</code> is being instiantiated in <code>PatternParser.finalizeConverter</code>. Unfortunately there's not an easy way to get a hold of the <code>DateFormat</code> to set the time zone.</p>