Benchmark: Date.parse vs new Date vs Date String Split no msec

Script Preparation code:

function getRandomInt(min, max) {
  min = Math.ceil(min);
  max = Math.floor(max);
  return Math.floor(Math.random() * (max - min) + min);
}

Tests:

String split date
var year = getRandomInt(1999,2021); var month = getRandomInt(10,11) var date = getRandomInt(11,28) var hour = getRandomInt(11,23) var minute = getRandomInt(11,59) var b = year + "-" + month + "-" + date + "T" + hour + ":" + minute + ":00.000Z"; var dt = b.substring(0,10).split("-"); var hr = b.substring(11,19).split(":"); Date.UTC(dt[0], --dt[1], dt[2], hr[0], hr[1], hr[2]);
new Date
var year = getRandomInt(1999,2021); var month = getRandomInt(10,11) var date = getRandomInt(11,28) var hour = getRandomInt(11,23) var minute = getRandomInt(11,59) var b = year + "-" + month + "-" + date + "T" + hour + ":" + minute + ":00.000Z"; var genDt= new Date(b)
Date.parse
var year = getRandomInt(1999,2021); var month = getRandomInt(10,11) var date = getRandomInt(11,28) var hour = getRandomInt(11,23) var minute = getRandomInt(11,59) var b = year + "-" + month + "-" + date + "T" + hour + ":" + minute + ":00.000Z"; var genDt= Date.parse(b)
new date from numbers
var year = getRandomInt(1999,2021); var month = getRandomInt(10,11) var date = getRandomInt(11,28) var hour = getRandomInt(11,23) var minute = getRandomInt(11,59) var genDt=new Date(Date.UTC(year, --month, date, hour, minute));

Rendered benchmark preparation results:

Previous results

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Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36

Browser/OS: Chrome 97 on Mac OS X 10.15.7

Date.parse vs new Date vs Date String Split no msec (version: 0)