VEVENTs

VEVENT is a component type defined by the iCalendar standard (RFC 5545) used to describe a single calendaring event or appointment. It is a fundamental unit within a VCALENDAR object and is typically serialized as an entry between BEGIN:VEVENT and END:VEVENT in an ICS file. A VEVENT conveys the essential details of an event for calendar clients and servers, enabling creation, display, and synchronization across systems.

Core properties include UID (a globally unique identifier for the event), DTSTAMP (the timestamp when the event was created or last revised), DTSTART (the start date-time or date for all-day events), and DTEND or DURATION (the end date-time or event length). The SUMMARY provides a brief title, while DESCRIPTION offers a longer description. LOCATION records where the event will occur. Optional properties include STATUS (for example, CONFIRMED, TENTATIVE, CANCELLED), ORGANIZER and ATTENDEE (for participants), CATEGORIES, and CLASS. CREATED and LAST-MODIFIED timestamp metadata are commonly included as well.

Time representations support time zones: DTSTART and DTEND may be date-time with a TZID parameter or UTC (ending with Z). A date-only form denotes all-day events. All-day events use date values without times. Recurrence is handled with RRULE, RDATE, and EXDATE, and RECURRENCE-ID can identify a specific instance of a recurring event for edits or exceptions.

VEVENTs are widely used in calendar applications, email invitations, and calendar synchronization protocols. They are designed to be interoperable across platforms, though implementation details can vary, and privacy considerations may affect which properties are exposed.