BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.now/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:68cee840-e76e-4805-a07b-e982d7db1e83
DTSTAMP:20260420T075015Z
DTSTART;VALUE=DATE:20210614
SUMMARY:Day off (substituted from 06/12/2021) (Russie)
END:VEVENT
END:VCALENDAR