2.1.3.1.1.5 Property: X-CALSTART
RFC Reference: N/A
Number of Instances Allowed: 0, 1, 2
Format: Date-Time ([RFC2445] section 4.3.5)
Brief Description: Identifies the start time of the first instance of an appointment in the iCalendar file.
Importing to Calendar objects
This property SHOULD be ignored.
Exporting from Calendar objects
This property SHOULD<7> be computed as the start time of the first instance of an appointment in the iCalendar file. If the iCalendar contains appointments with floating and non-floating start times in such a way that the calendar's start time is dependent on the recipient's time zone, the X-CALSTART property SHOULD<8> be declared twice: once with a floating calendar start time, and once with a non-floating calendar start time.