BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
BEGIN:VEVENT
DTSTART;TZID=America/New_York:20260405T000000
DTEND;TZID=America/New_York:20260405T235900
LOCATION:In the world
TRANSP: OPAQUE
SEQUENCE:0
UID:
SUMMARY:Easter Sunday
DESCRIPTION:Joy To The World! 
PRIORITY:1
CLASS:PUBLIC
BEGIN:VALARM
TRIGGER:-PT10080M
ACTION:DISPLAY
DESCRIPTION:Reminder
End:VALARM
End:VEVENT
End:VCALENDAR