Is there a high resolution (microsecond, nanosecond) DateTime object available for the CLR?

Question

I have an instrument that stores timestamps the microsecond level, and I need to store those timestamps as part of collecting information from the instrument. Note that I do

Answer 1

If I really needed more accuracy than the 100 ns resolution provided by DateTime, I would consider creating a structure that contains a DateTime and an integer value:

public struct HiResDateTime
{
    public HiResDateTime(DateTime dateTime, int nanoseconds)
    {
        if (nanoSeconds < 0 || nanoSeconds > 99) 
            throw new ArgumentOutOfRangeException(...);
        DateTime = dateTime;
        Nanoseconds = nanoseconds;
    }

    ... possibly other constructors including one that takes a timestamp parameter
    ... in the format provided by the instruments.

    public DateTime DateTime { get; private set; }
    public int Nanoseconds { get; private set; }

    ... implementation ...
}

Then implement whatever is needed, for example:

• Comparison (DateTime first, then Nanoseconds)
• ToString() e.g. format DateTime to 100 ns accuracy then append nanoseconds.
• Conversion to/from DateTime
• Add/subtract (might need a similar HiResTimeSpan) ... etc. ...