A TimeSpan value can be represented as [-]d.hh:mm:ss.ff, where the optional minus sign indicates a negative time interval, the d component is days, hh is hours as measured on a 24-hour clock, mm is minutes, ss is seconds, and ff is fractions of a second. The value of the TimeSpan.Days property is the day component, d.

The TimeSpan.Days property represents whole days, whereas the TimeSpan.TotalDays property represents whole and fractional days.

This example demonstrates using the TimeSpan.Days property.

using System;
public class TimeSpanPropertiesExampleOne {
   public static void Main() {
      TimeSpan ts = new TimeSpan((Int64)10e12+3456789);
      Console.WriteLine(ts.ToString());
      Console.WriteLine("Days: {0}", ts.Days );
   }
}

The output is