relative-microtime

relative-microtime

This module returns the number of microseconds elapsed since January 1, 1970 00:00:00 UTC.

Note: The returned number of microseconds are locked relative to a specific time and is therefore not subject to clock drift. This is contrary to how Date.now() operates, whos return value (in milliseconds) is always based on the system clock.

Installation

npm install relative-microtime --save

Usage

const timer = require('relative-microtime')()

const milli = Date.now()
const micro = timer()

console.log(milli) // 1537446194859
console.log(micro) // 1537446194859132

Gotcha

API

timer = microtime()

Sync the microtime clock to the UTC wall clock.

Returns a timer function synced with the UTC time when microtime() was called. Any clock drift that happens after the call to microtime() will not influence the returned timer.

timer()

Returns a Number representing the microseconds elapsed since the UNIX epoch.

License

MIT