BEGIN:VCALENDAR
PRODID:-//tzurl.org//NONSGML Olson 2018g-rearguard//EN
VERSION:2.0
BEGIN:VTIMEZONE
TZID:Etc/GMT-6
TZURL:http://tzurl.org/zoneinfo-outlook/Etc/GMT-6
X-LIC-LOCATION:Etc/GMT-6
BEGIN:STANDARD
TZOFFSETFROM:-0600
TZOFFSETTO:-0600
TZNAME:-06
DTSTART:19700101T000000
END:STANDARD
END:VTIMEZONE
END:VCALENDAR