DTSTARTVALUEDATE20240101

DTSTARTVALUEDATE20240101 appears to be a concatenation rather than a canonical ICS property. In iCalendar terminology, the start date or start date-time of a calendar component is indicated by the DTSTART property. It is used in components such as VEVENT, VTODO, and VJOURNAL to mark when the item begins.

When the value is a date only, the line typically includes a parameter to specify the value type, for example DTSTART;VALUE=DATE:20240101. If a time is included, the value is a date-time and may appear as DTSTART:20240101T090000 or DTSTART:20240101T090000Z, with time zone handling determined by TZID or a trailing Z for UTC. The exact syntax depends on whether a full timestamp or a date is required by the data model or software consuming the ICS data.

In practice, a token like DTSTARTVALUEDATE20240101 is not valid ICS syntax; it is likely a compact or code-like reference used in documentation, data pipelines, or code generation to denote the start date value of January 1, 2024. The meaningful representation in standard ICS would be DTSTART;VALUE=DATE:20240101 for a date-only start, or DTSTART:20240101T000000 for a date-time start without a specified time zone.

Understanding this distinction is important for interoperability, as calendar applications rely on strict formatting rules defined in RFC 5545. See also iCalendar, RFC 5545, and related properties such as DTEND.