BEGIN:VCALENDAR
                        VERSION:2.0
                        PRODID:-//hacksw/handcal//NONSGML v1.0//EN
                        BEGIN:VEVENT
                        UID:691185f223b644fab5b25cd69f94163dhttps://gba-vietnam.org
                        DTSTAMP:20260516T064455
                        DTSTART:TZID=20221013T180000
                        DTEND:TZID=20221013T210000
                        SUMMARY:Business Thursday Hanoi
                        DESCRIPTION:
                        END:VEVENT
                        END:VCALENDAR