the present time resolution in the TIME()-BIF indicates
microseconds, but it still is restricted to milliseconds.
In today's age of extremely fast processors in quite a
few cases no meaningful timing is possible anymore as
many times the elapsed time is 0 or 0.001 due to the
In the .Net world the DateTime datatype at present is
using a resolution of 100 nanosceconds.
Given today's processor power I would request a
resolution of one nanosecond to make measuring elapsed
time most accurate and future safe at the same time.