LazyMAPI

MAPI Named Properties

Canonical name: PidLidTaskDateCompleted
Description: Specifies the date when the user completes the task.
Property Set: PSETID_Task
Property ID (Name): $810F
Data Type: PT_SYSTIME
Area: Task

Remarks: If set, this property must have a time component of midnight in the local time zone, converted to Coordinated Universal Time (UTC).