If you need to know the time that elapsed between two operations you can use the
the following tool from Microsoft(windows 2000 resource kit):
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TIMETHIS : Command Timing Utility
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Usage : TIMETHIS “command”
TimeThis executes the command specified by its arguments, then reports its
run time in HH:MM:SS.TTT format. Quotes around the command are required only
when the command involves redirection via <, >, >>, or |, etc. Quotes ensure
that the redirection is applied to the command being timed, rather than the
TimeThis command itself.