#Set Default Timezone
$wgLocaltimezone = "Asia/Taipei";
#Calculate the timezone offset with UTC
$oldtz = getenv("TZ");
putenv("TZ=$wgLocaltimezone");
# $wgLocalTZoffset = date("Z") / 3600; # Versions before 1.7.0 used $wgLocalTZoffset as hours.
$wgLocalTZoffset = date("Z") / 60; # After 1.7.0 offset as minutes
putenv("TZ=$oldtz");
http://www.tsima.org.tw/wiki/index.php/%E6%9C%9F%E5%88%8A/MediaWiki%E7%B6%B2%E7%AB%99%E6%9E%B6%E8%A8%AD%E8%A8%AD%E5%AE%9A#.E9.96.8B.E5.95.9F.E5.AD.90.E9.A0.81.E9.9D.A2.E5.8A.9F.E8.83.BD
若個別使者,可以 My preferences,date and time,設定自己的時間。