1 files changed, 3 insertions, 32 deletions
diff --git a/zoneinfo/America/Jamaica.ics b/zoneinfo/America/Jamaica.ics
index 9c20d173..f7c67d5d 100644
--- a/zoneinfo/America/Jamaica.ics
+++ b/zoneinfo/America/Jamaica.ics
@@ -2,42 +2,13 @@ BEGIN:VCALENDAR
 PRODID:-//citadel.org//NONSGML Citadel calendar//EN
 VERSION:2.0
 BEGIN:VTIMEZONE
-TZID:/citadel.org/20170826_1/America/Jamaica
-LAST-MODIFIED:20170826T195802Z
+TZID:/citadel.org/20070227_1/America/Jamaica
 X-LIC-LOCATION:America/Jamaica
-X-PROLEPTIC-TZNAME:LMT
 BEGIN:STANDARD
-TZNAME:KMT
-TZOFFSETFROM:-050711
-TZOFFSETTO:-050711
-DTSTART:18900101T000000
-END:STANDARD
-BEGIN:STANDARD
-TZNAME:EST
-TZOFFSETFROM:-050711
-TZOFFSETTO:-0500
-DTSTART:19120201T000000
-END:STANDARD
-BEGIN:DAYLIGHT
-TZNAME:EDT
 TZOFFSETFROM:-0500
-TZOFFSETTO:-0400
-DTSTART:19740106T020000
-RDATE:19750223T020000
-END:DAYLIGHT
-BEGIN:STANDARD
-TZNAME:EST
-TZOFFSETFROM:-0400
 TZOFFSETTO:-0500
-DTSTART:19741027T020000
-RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU;UNTIL=19831030T060000Z
+TZNAME:EST
+DTSTART:19700101T000000
 END:STANDARD
-BEGIN:DAYLIGHT
-TZNAME:EDT
-TZOFFSETFROM:-0500
-TZOFFSETTO:-0400
-DTSTART:19760425T020000
-RRULE:FREQ=YEARLY;BYMONTH=4;BYDAY=-1SU;UNTIL=19830424T070000Z
-END:DAYLIGHT
 END:VTIMEZONE
 END:VCALENDAR