DateTime vs DateTimeOffset

using System;

namespace TestDateTimes
{
    using System;

    public class DateArithmetic
    {
        public static void Main()
        {
            DateTime date1, date2;
            DateTimeOffset dateOffset1, dateOffset2;
            TimeSpan difference;

            // Find difference between Date.Now and Date.UtcNow
            date1 = DateTime.Now;
            date2 = DateTime.UtcNow;
            difference = date1 - date2;
            Console.WriteLine("{0} - {1} = {2}", date1, date2, difference);

            // Find difference between Now and UtcNow using DateTimeOffset
            dateOffset1 = DateTimeOffset.Now;
            dateOffset2 = DateTimeOffset.UtcNow;
            difference = dateOffset1 - dateOffset2;
            Console.WriteLine("{0} - {1} = {2}", dateOffset1, dateOffset2, difference);

            // RAN IN PORTUGAL
            // 12/03/19 5:31:13 PM - 12/03/19 5:31:13 PM = -00:00:00.0055231
            // 12/03/19 5:31:13 PM +00:00 - 12/03/19 5:31:13 PM +00:00 = -00:00:00.0000577

            // MICROSOFT EXAMPLE
            // If run in the Pacific Standard time zone on 4/2/2007, the example
            // displays the following output to the console:
            //    4/2/2007 7:23:57 PM - 4/3/2007 2:23:57 AM = -07:00:00
            //    4/2/2007 7:23:57 PM -07:00 - 4/3/2007 2:23:57 AM +00:00 = 00:00:00
        }
    }
}