diff --git a/calendar/locales/en-US/chrome/calendar/calendar.dtd b/calendar/locales/en-US/chrome/calendar/calendar.dtd
index 34f0df566161..9d8ea8355ac9 100644
--- a/calendar/locales/en-US/chrome/calendar/calendar.dtd
+++ b/calendar/locales/en-US/chrome/calendar/calendar.dtd
@@ -123,7 +123,6 @@
 <!ENTITY newevent.advanced.repeat.second.label "Second"> 
 <!ENTITY newevent.advanced.repeat.third.label "Third"> 
 <!ENTITY newevent.advanced.repeat.fourth.label "Fourth"> 
-<!ENTITY newevent.advanced.repeat.last.label "Last"> 
 <!ENTITY newevent.advanced.repeat.first.extension "st"> 
 <!ENTITY newevent.advanced.repeat.second.extension "nd"> 
 <!ENTITY newevent.advanced.repeat.third.extension "rd"> 
@@ -195,8 +194,6 @@
 <!ENTITY calendar.listofcalendarstab.label "Calendars">
 <!ENTITY calendar.gototoday.button.label        "Go To Today" >
 
-<!ENTITY calendar.listofcalendarstab.label "Calendars">
-
 <!ENTITY calendar.calendarlistbox.label "Calendars">
 
 <!ENTITY calendar.events.filter.all.label "All Events">
diff --git a/calendar/locales/en-US/chrome/calendar/calendar.properties b/calendar/locales/en-US/chrome/calendar/calendar.properties
index 0afc5d36541a..d0f21e198a3b 100644
--- a/calendar/locales/en-US/chrome/calendar/calendar.properties
+++ b/calendar/locales/en-US/chrome/calendar/calendar.properties
@@ -90,8 +90,6 @@ defaultzone=America/New_York
 
 Week=Week
 
-defaultzone=Default Timezone:
-
 # Alarm
 TooManyAlarmsMessage=You have %1$S total alarms. We've shown you the last 6. Click Acknowledge All to clear them all.