BEGIN:VCALENDAR
VERSION:2.0
PRODID:spatie/icalendar-generator
NAME:This is a demo event
X-WR-CALNAME:This is a demo event
BEGIN:VTIMEZONE
TZID:America/New_York
BEGIN:DAYLIGHT
DTSTART:20270314T020000
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20271107T020000
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
END:STANDARD
END:VTIMEZONE
BEGIN:VTIMEZONE
TZID:UTC
BEGIN:STANDARD
DTSTART:20250818T104023
TZOFFSETFROM:+0000
TZOFFSETTO:+0000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
UID:6a06f817863e9
DTSTAMP:20260515T104023Z
SUMMARY:This is a demo event
DESCRIPTION:This is a test event powered by Cal.et 
LOCATION:https://cal.et/calendars
DTSTART;TZID=America/New_York:20270805T120000
DTEND;TZID=America/New_York:20270805T120000
X-ALT-DESC;FMTTYPE=text/html:<p>This is a test event <strong>powered by Cal
 .et </strong></p>
END:VEVENT
END:VCALENDAR