ArcGIS Pro 2.7 API Reference Guide
TimeDelta Class
Members 

ArcGIS.Desktop.Mapping Namespace : TimeDelta Class
Represents a time interval defined by a positive or negative value and a unit of time.
Syntax
public class TimeDelta 
Public Class TimeDelta 
Remarks
Similar to System.TimeSpan this class offers advantages in that it can represent time intervals that are not uniform in time, for example months or years. TimeRange.Offset and other members accepting TimeDelta as an input are able to account and handle these irregular time periods like months or years when calculating new dates and times.
Inheritance Hierarchy

System.Object
   ArcGIS.Desktop.Mapping.TimeDelta

Requirements

Target Platforms: Windows 10, Windows 8.1

See Also

Reference

TimeDelta Members
ArcGIS.Desktop.Mapping Namespace