right-now

Get the quickest, most high-resolution timestamp possible in node or the browser

@ianwalter/timer

A high resolution timer that returns the duration in a format thats easy for humans to understand

node-hrstopwatch

A high resolution stopwatch using the hrtime function of the Node.JS process object which returns duration in nanoseconds.

timing2

The state-of-art web performance metrics collector based on High Resolution Time API