BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//time.now/holidays//NONSGML v1.0//EN
BEGIN:VEVENT
UID:e8eff043-8173-4015-8806-a82b06870586
DTSTAMP:20260420T213810Z
DTSTART;VALUE=DATE:20260501
SUMMARY:International Labor Day (Vietnam)
END:VEVENT
END:VCALENDAR