Date.now() will only give you accuracy in milliseconds. This module calls
gettimeofday(2) to get the time in microseconds and provides it in a few
different formats. The same warning from that function applies:
The resolution of the system clock is hardware dependent, and the time may
be updated continuously or in ``ticks.''
As of version
3.0.0, this library is built using the N-API library. This should allow you to upgrade to newer versions of Node.js without having to reinstall / rebuild this library.
3.0.0 and later also bundle prebuilt binaries for common systems in
the npm package itself. These will be used if the version of Node you are using
supports N-API (>= v6.14.2), otherwise the binary will be recompiled on install.
npm install microtime
Get the current time in microseconds as an integer.
Get the current time in seconds as a floating point number with microsecond
accuracy (similar to
time.time() in Python and
Time.now.to_f in Ruby).
Get the current time and return as a list with seconds and microseconds (matching the return value of
> var microtime = require('microtime') > microtime.now() 1297448895297028 > microtime.nowDouble() 1297448897.600976 > microtime.nowStruct() [ 1297448902, 753875 ]
Estimating clock resolution
Starting with version 0.1.3, there is a test script that tries to guess the clock resolution. You can run it with
npm test microtime. Example output:
microtime.now() = 1298960083489806 microtime.nowDouble() = 1298960083.511521 microtime.nowStruct() = [ 1298960083, 511587 ] Guessing clock resolution... Clock resolution observed: 1us