BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.you/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:a07b8c1f-8212-4a3c-b835-3cd875e6e825
DTSTAMP:20260424T122303Z
DTSTART;VALUE=DATE:20210920
SUMMARY:Day off (substituted from 09/18/2021) (China)
END:VEVENT
END:VCALENDAR