BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.you/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:facde0ca-3afb-40e8-924b-669dd602e964
DTSTAMP:20260506T080412Z
DTSTART;VALUE=DATE:20211105
SUMMARY:Day off (substituted from 01/02/2021) (Russia)
END:VEVENT
END:VCALENDAR