BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.now/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:a5cc0d20-5dac-42ab-b89a-d48fddd4ea60
DTSTAMP:20260420T215501Z
DTSTART;VALUE=DATE:20260501
SUMMARY:International Labor Day (Vietnam)
END:VEVENT
END:VCALENDAR