BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.you/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:e262e178-1895-4bd5-9da9-f2c24518c563
DTSTAMP:20260421T205612Z
DTSTART;VALUE=DATE:20230224
SUMMARY:Day off (substituted from 01/01/2023) (Russia)
END:VEVENT
END:VCALENDAR