Namespace: ITHit.Collab.Calendar
This property can contain "floating" time (without time zone), time related to time zone specified in TimeZoneId, or time in UTC.
In case the time is "floating", the Kind is set to Local. The TimeZoneId is always null in this case.
In case the time in time zone specified by TimeZoneId, the Kind is set to Unspecified.
In case the time is in UTC, the Kind is set to Utc.
This property can contain either date and time or date only. To find out if time is specified check the Time flag of the Components property.
https://tools.ietf.org/html/rfc5545#section-3.8.2.3