Run results for: Date(number) vs Date(Number(bigint))

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.1.2 Safari/605.1.15

Browser: Safari 17

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

new Date - from number

6.6M/s

new Date - bigint to number conversion

4.1M/s

View exact numbers

Test name	Executions per second
✓ new Date - from number	6,607,980 Ops/sec
new Date - bigint to number conversion	4,123,243 Ops/sec

Script Preparation code:

var timestampBigInt = 1665060929302n
var timestampNumber = 1665060929302

Tests:

new Date - bigint to number conversion
const date = new Date(Number(timestampBigInt))
new Date - from number
const date = new Date(timestampNumber)