parse-duration 
convert a human readable duration to ms
Installation
then in your app:
import parse from 'parse-duration'or CommonJS:
var parse = require('parse-duration')API
parse(str, format='ms')
Convert str to ms
var ns = parse('1ns') // => 1 / 1e6
var μs = parse('1μs') // => 1 / 1000
var ms = parse('1ms') // => 1
var s = parse('1s') // => ms * 1000
var m = parse('1m') // => s * 60
var h = parse('1h') // => m * 60
var d = parse('1d') // => h * 24
var w = parse('1w') // => d * 7
var y = parse('1y') // => d * 365.25It can also handle basic compound expressions
parse('1hr 20mins') // => 1 * h + 20 * m
parse('1 hr 20 mins') // => 1 * h + 20 * myoutube format
parse('1h20m0s') // => 1 * h + 20 * mcomma seperated numbers
parse('27,681 ns') // => 27681 * nsAnd most other types of noise
parse('running length: 1hour:20mins') // => 1 * h + 20 * mYou can even use negatives
parse('2hr -40mins') // => 1 * h + 20 * mAnd exponents
parse('2e3s') // => 2000 * sAvailable unit types are:
- nanoseconds (ns)
- microseconds (μs)
- milliseconds (ms)
- seconds (s, sec)
- minutes (m, min)
- hours (h, hr)
- days (d)
- weeks (w, wk)
- months
- years (y, yr)
And its easy to add more, including unicode:
parse['сек'] = parse['sec']
parse('5сек') // => 5000The output format can also be defined
parse('1hr 20mins', 'm') // => 80