BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.now/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:9d44a9b7-f92f-4e98-bad6-47169cc8567c
DTSTAMP:20260420T074909Z
DTSTART;VALUE=DATE:20211105
SUMMARY:Day off (substituted from 01/02/2021) (Russie)
END:VEVENT
END:VCALENDAR