2.1.3.1.1.7 Property: X-CLIPSTART
RFC Reference: N/A
Number of Instances Allowed: 0, 1
Format: Date-Time ([RFC2445] section 4.3.5)
Brief Description: Indicates the start of the date range that the user selected for export during the creation of the iCalendar file.
Importing to Calendar objects
This property SHOULD<11> be ignored.
Exporting from Calendar objects
This property SHOULD<12> be the start of the date range that the user selected for export. If this iCalendar does not represent a calendar export, this property MUST be omitted.