javascript how to change date now format

Question

I am facing an issue with javascript dates. I want to change the format of date

        this.setState({ 

          current: Date(Date.now()),



      }, 1000);


//convert minutes 
//if minutes are 0 to 29 then show current hours reset the minutes again start with 0 like 18:00 
//if minutes are 29 to 59 then show current hours reset the minutes again start with 30 like 18:30

var slotTime1 = currentdate.getHours() +':'+ (currentdate.getMinutes() <= 29 ? '00' : '30') ;  //10:30

Output:

Thu May 14 2020 10:00:30 GMT+0500 (Pakistan Standard Time)

Expected

10:00:52 AM

10:30 AM

What should I change?

Use [Intl.DateTimeFormat](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl/DateTimeFormat/DateTimeFormat). — Ben Aston, May 14 '20 at 05:41
When called as a function, *Date* doesn't take any arguments and returns a string representing the current date and time. So in `Date(Date.now())`, the argument is redundant, the expression produces the exact same result as `Date()`. — RobG, May 15 '20 at 20:22

palaѕн · Accepted Answer · 2020-05-14T05:58:07.520

1

You can simply use Date toLocaleTimeString() method like:

const current = new Date()
const timestring = current.toLocaleTimeString()
console.log( timestring )   //=> 10:47:52 AM

The toLocaleTimeString() method returns a string with a language sensitive representation of the time portion of the date.

To only get hh:mm a format you can pass option object to the toLocaleTimeString() method like:

const current = new Date()
const timestring = current.toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' })
console.log( timestring )   //=> 10:50 AM

With setState:

this.setState({
  current: new Date().toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' })
});

edited May 14 '20 at 05:58

answered May 14 '20 at 05:48

palaѕн

64,836
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it is not working i defined in `setState` [@](https://stackoverflow.com/users/1823841/pala%d1%95%d0%bd) – adnan khan May 14 '20 at 05:55
I have updated the code on how to use with `setState` – palaѕн May 14 '20 at 05:58
how should i define my `current.toLocaleTimeString()` in setstate [@](https://stackoverflow.com/users/1823841/pala%d1%95%d0%bd) – adnan khan May 14 '20 at 06:27
Like this: `this.setState({ current: new Date().toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' }) });` – palaѕн May 14 '20 at 06:30
you don't understand – adnan khan May 14 '20 at 06:33
i updated the posts [@](https://stackoverflow.com/users/1823841/pala%d1%95%d0%bd) – adnan khan May 14 '20 at 06:34
Please don't keep adding multiple questions to the same post. Your main question in this is post is how to get a date in `10:30 AM` format, which is resolved. If you have further questions please create separate questions for it. Thanks! – palaѕн May 14 '20 at 06:37
ok can you please tell me? [@](https://stackoverflow.com/users/1823841/pala%d1%95%d0%bd) – adnan khan May 14 '20 at 06:46

Raman Sharma · Answer 2 · 2020-05-16T04:52:47.070

0

var date=new Date();    
console.log(date.getHours() + ":" + date.getMinutes()+ ":" + date.getSeconds() + " " + date.getHours()<12 ? 'AM' : 'PM'}`);

OUTPUT : 11:9:37 AM

date.getHours()<12 results in AM between 12Am to 11:59 AM and after 11:59 it results in PM

edited May 16 '20 at 04:52

answered May 14 '20 at 05:55

Raman Sharma

171
2
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`date.getHours() < 12? 'AM' : 'PM'` is a lot less to type and more semantic. Also you should pad the minutes and seconds to two digits. ;-) – RobG May 15 '20 at 20:27

javascript how to change date now format

2 Answers2