Model Parts, Diagrams, Dictionary Items, and Properties > Properties > Time (property)
  
Time (property)
This property specifies the period of time of a Timing constraint, including the units used.
By default, the Time box is blank.
On a Sequence Diagram, the Time property is shown as follows (assuming the Timing Constraint is not linked to a Constraint):
This property is set on the Timing Constraint tab of a Timing Constraint's Property Pages.
The following section provides information about the items and diagrams for which Time is a property. For more information about an item or diagram, click it.
Is property of
Timing Constraint