BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.now/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:87b3dc3a-45a2-4bca-abbc-bd264484da28
DTSTAMP:20260429T180431Z
DTSTART;VALUE=DATE:20200505
SUMMARY:Day off (substituted from 01/05/2020) (Russie)
END:VEVENT
END:VCALENDAR