How to convert result from Date.now() to yyyy/MM/dd hh:mm:ss ffff?

Question

I'm looking for something like yyyy/MM/dd hh:mm:ss ffff

Date.now() returns the total of milliseconds (ex: 1431308705117).

How can I do this?

Answer 1

You can use the Date constructor which takes in a number of milliseconds and converts it to a JavaScript date:

var d = new Date(Date.now()); d.toString() // returns "Sun May 10 2015 19:50:08 GMT-0600 (MDT)" 

In reality, however, doing Date(Date.now()) does the same thing as Date(), so you really only have to do this:

var d = new Date(); d.toString() // returns "Sun May 10 2015 19:50:08 GMT-0600 (MDT)" 

Answer 2

You can use native JavaScript Date methods to achieve that or you can use a library like Moment.js.

It is a simple as:

moment().format('YYYY/MM/D hh:mm:ss SSS') 

If you are going use a lot of date formatting/parsing in your application then I definitely recommend using it.

Answer 3

You can use Date().toISOString(), i.e.:

let d = new Date().toISOString();
alert(d);

---

Output:

2022-02-04T17:46:16.100Z 

---

Demo:

let d = new Date().toISOString();
document.write(d);

Answer 4

Simple

const DateNow = Date.now(); // 1602710690936
console.log(new Date(DateNow).toString()) // returns "Sun May 10 2015 19:50:08 GMT-0600 (MDT)"