BEGIN:VCALENDAR VERSION:2.0 PRODID:-//YourSite//NONSGML v1.0//EN BEGIN:VEVENT UID:68b3df9b947f3 DTSTAMP:20250831T053731Z DTSTART:20250831T053731 DTEND:20250831T053731 SUMMARY:2023 Boston Marathon DESCRIPTION: LOCATION: END:VEVENT END:VCALENDAR