using System;
using System.Globalization;
class Sample
{
public static void Main()
{
System.DateTime dTime = new System.DateTime(1980, 8, 5);
// tSpan is 17 days, 4 hours, 2 minutes and 1 second.
System.TimeSpan tSpan
= new System.TimeSpan(17, 4, 2, 1);
// Result gets 8/22/1980 4:02:01 AM.
System.DateTime result = dTime + tSpan;
}
}