MoP

    public class UnixTime
    {
 
        public static DateTime UnixBegun = new DateTime(1970, 1, 1, 0, 0, 0);
 
        private Int64 Second;
 
        public UnixTime(Int64 second)
        {
            Second = second;
        }
        public static Int64 GetUnixTime()
        {
            return new UnixTime((Int64)(System.DateTime.UtcNow - UnixBegun).TotalSeconds);
        }
        public static UnixTime GetUnixTimeFromDateTime(System.DateTime datetime)
        {
            return new UnixTime((Int64)(datetime - UnixBegun).TotalSeconds);
        }
        public static implicit operator Int64(UnixTime UT)
        {
            return UT.Second;
        }
        public static implicit operator UnixTime(Int64 d)
        {
            return new UnixTime(d);
        }
        public static Int64 operator -(UnixTime UT1, UnixTime UT2)
        {
            return new UnixTime(UT1.Second - UT2.Second);
        }
        public static Int64 operator +(UnixTime UT1, UnixTime UT2)
        {
            return new UnixTime(UT1.Second + UT2.Second);
        }
        public static bool operator ==(UnixTime UT1, UnixTime UT2)
        {
            return UT1.Second == UT2.Second ? true : false;
        }
        public static bool operator !=(UnixTime UT1, UnixTime UT2)
        {
            return UT1.Second != UT2.Second ? true : false;
        }
        public override string ToString()
        {
            return Second.ToString();
        }
    }