BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.now/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:2b510f8d-9a08-46b3-94b5-fbb3e6adaeba
DTSTAMP:20260420T013951Z
DTSTART;VALUE=DATE:20210504
SUMMARY:Day off (substituted from 04/25/2021) (China)
END:VEVENT
END:VCALENDAR