BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.you/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:cd73ec5f-ec6e-470b-8e1a-0c27b2696d8d
DTSTAMP:20260610T110910Z
DTSTART;VALUE=DATE:20200505
SUMMARY:Day off (substituted from 01/05/2020) (Russia)
END:VEVENT
END:VCALENDAR