Get the current time in microseconds
npm install microtime2
Date.now() will only give you accuracy in milliseconds. This module callsgettimeofday(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.''_
npm install microtime
* Requires npm >= 1.1.5 (which bundles node-gyp). See https://github.com/wadey/node-microtime/issues/9
Get the current time in microseconds as an integer. Since JavaScript can only
represent integer values accurately up to Math.pow(2, 53), this value will
be accurate up to _Tue, 05 Jun 2255 23:47:34 GMT_.
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 gettimeofday(2)).
> var microtime = require('microtime')
> microtime.now()
1297448895297028
> microtime.nowDouble()
1297448897.600976
> microtime.nowStruct()
[ 1297448902, 753875 ]
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
Node.js 0.2.6
- OS X 10.6.6
- Ubuntu 10.04
Node.js 0.4.1
- OS X 10.6.6
- Windows 7 64bit (Cygwin) *
Node.js 0.8.11
- OS X 10.7.4
- Travis (linux): https://travis-ci.org/wadey/node-microtime
It appears that Cygwin only implements gettimeofday(2)` with millisecond accuracy.