Specifies the ending date that a ToD entry is potentially active. Used when absolute (date- based) timing is required. A zero length string indicates that relative (day-based) timing is required (i.e., TodWeekDays object is not zero length). End date data is specified using a standard calendar date representation (e.g., mm/dd/yyyy). Both a start date and an end date must be specified for a ToD entry to be valid when absolute timing is required. The start date must be before or equal to the end date. Relative (day-based) and absolute (date-based) timing specification data are mutually exclusive.