Search observations based on observation date and time. If ObservationDateTime.PartOfYear has a DateTimeInterval value then the first value in PartOfYear is used and search is limited to part of year with no limit on years. If ObservationDateTime.PartOfYear is empty then ObservationDateTime.Begin and ObservationDateTime.End is used to limit species observation search.

IDateTimeSearchCriteria ObservationDateTime { get; set; }

Property ObservationDateTime As IDateTimeSearchCriteria
	Get
	Set

property IDateTimeSearchCriteria^ ObservationDateTime {
	IDateTimeSearchCriteria^ get ();
	void set (IDateTimeSearchCriteria^ value);
}

abstract ObservationDateTime : IDateTimeSearchCriteria with get, set