From: "-0500" BEGIN: VTIMEZONE TZID:Guadalajara, Mexico City, Monterrey X-ENTOURAGE-TZID: 66 X-ENTOURAGE-CFTIMEZONE: America/Mexico City BEGIN: STANDARD DTSTART: 20001029T020000 RRULE : FREQ=YEARLY; INTERVAL=1; BYDAY=-1SU; BYMONTH=10 TZOFFSETFROM: -0500 TZOFFSETTO: -0600 TZNAME:Standard Time END: STANDARD BEGIN: DAYLIGHT DTSTART: 20010401T020000 RRULE: FREQ=YEARLY; INTERVAL=1 ; BYDAY=1SU; BYMONTH=4 TZOFFSETFROM: -0600 TZOFFSETTO: -0500 TZNAME:Daylight Savings Time END: DAYLIGHT END: VITIMEZONE EFTA00503579