diff --git a/mozilla/calendar/base/src/tzdata.c b/mozilla/calendar/base/src/tzdata.c
index 7ec360aceda..b9fc6c4d281 100644
--- a/mozilla/calendar/base/src/tzdata.c
+++ b/mozilla/calendar/base/src/tzdata.c
@@ -1792,7 +1792,7 @@ static ical_timezone_data_struct ical_timezone_data[] = {
 {
 	"/mozilla.org/20070129_1/Australia/Perth",
 	"-0315700", "+1155100",
-	"BEGIN:VCALENDAR\nPRODID:-//mozilla.org//NONSGML Sunbird via VZIC//EN\nVERSION:2.0\nBEGIN:VTIMEZONE\nTZID:/mozilla.org/20070129_1/Australia/Perth\nX-LIC-LOCATION:Australia/Perth\nBEGIN:DAYLIGHT\nTZOFFSETFROM:+0800\nTZOFFSETTO:+0900\nTZNAME:WST\nDTSTART:20061203T020000\nRRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU\nEND:DAYLIGHT\nBEGIN:STANDARD\nTZOFFSETFROM:+0900\nTZOFFSETTO:+0800\nTZNAME:WST\nDTSTART:19700329T030000\nRRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU\nEND:STANDARD\nEND:VTIMEZONE\nEND:VCALENDAR\n"
+	"BEGIN:VCALENDAR\nPRODID:-//mozilla.org//NONSGML Sunbird via VZIC//EN\nVERSION:2.0\nBEGIN:VTIMEZONE\nTZID:/mozilla.org/20070129_1/Australia/Perth\nX-LIC-LOCATION:Australia/Perth\nBEGIN:DAYLIGHT\nTZOFFSETFROM:+0800\nTZOFFSETTO:+0900\nTZNAME:WST\nDTSTART:20061029T020000\nRRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU\nEND:DAYLIGHT\nBEGIN:STANDARD\nTZOFFSETFROM:+0900\nTZOFFSETTO:+0800\nTZNAME:WST\nDTSTART:19700329T030000\nRRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU\nEND:STANDARD\nEND:VTIMEZONE\nEND:VCALENDAR\n"
 }
 ,
 {