Benchmark: Date.now() vs new Date().getTime() vs performance.now() with calc function

Script Preparation code:

var timestamp = null;

function t1 () {
  timestamp = Date.now() - Date.now();
} 

function t2 () {
  timestamp = new Date().getTime() - new Date().getTime();
} 

function t3 () {
  timestamp = performance.now() - performance.now();
}

Tests:

Date.now()
t1();
new Date().getTime();
t2();
performance.now()
t3();

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Date.now()
new Date().getTime();
performance.now()

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36

Browser/OS: Chrome 105 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Date.now()	1865949.0 Ops/sec
new Date().getTime();	1648209.0 Ops/sec
performance.now()	1352564.0 Ops/sec

Date.now() vs new Date().getTime() vs performance.now() with calc function (version: 0)

Comparing performance of: Date.now() vs new Date().getTime(); vs performance.now()

Created: one year ago by: Guest

Jump to the latest result

Date.now()

new Date().getTime();

performance.now()

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A