relative-microtime
v2.0.0
Published
Get the number of microseconds elapsed since January 1, 1970 00:00:00 UTC without fear of clock drift
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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.