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| ArcObjects namespaces > System > ESRI.ArcGIS.esriSystem > Interfaces > IT > ITimeDuration Interface > ITimeDuration.SetDayFraction Method (ArcObjects .NET 10.4 SDK) | 
The time duration day fraction portion as a day fraction. Corresponds to the Hour, Minute, Second, and Nanoseconds properties.
[Visual Basic .NET] Public Sub SetDayFraction ( _ ByVal dayFraction As Double _ )
[C#] public void SetDayFraction ( double dayFraction );
[C++]
HRESULT SetDayFraction(
  double dayFraction
);
[C++]
Parameters dayFraction [in] dayFraction is a parameter of type double