| Duration | The duration datatype represents a combination of year, month, day and time values representing a single duration of time, encoded as a single string. |
| End | The ending value of the time span. |
| Start | The starting value of the time span. |
| AbsoluteDeadline | Defines the absolute deadline. Either this or the offset attributes may be used. |
| OffsetDropTime | An enumerated type indicating when the deadline drop time goes into effect. |
| OffsetTimeUnit | The units of time, e.g.: days, hours, etc., that apply to the deadline. |
| OffsetUnitMultiplier | The number of units of DeadlineTimeUnit. |