Convert a Unix timestamp to time in JavaScript

Question

I am storing time in a MySQL database as a Unix timestamp and that gets sent to some JavaScript code. How would I get just the time out of it?

For example, in HH/MM/

Answer 1

moment.js

convert timestamps to date string in js

https://momentjs.com/

moment().format('YYYY-MM-DD hh:mm:ss');
// "2020-01-10 11:55:43"

moment(1578478211000).format('YYYY-MM-DD hh:mm:ss');
// "2020-01-08 06:10:11"

Answer 2

function timeConverter(UNIX_timestamp){
 var a = new Date(UNIX_timestamp*1000);
     var hour = a.getUTCHours();
     var min = a.getUTCMinutes();
     var sec = a.getUTCSeconds();
     var time = hour+':'+min+':'+sec ;
     return time;
 }

Answer 3

let unix_timestamp = 1549312452
// Create a new JavaScript Date object based on the timestamp
// multiplied by 1000 so that the argument is in milliseconds, not seconds.
var date = new Date(unix_timestamp * 1000);
// Hours part from the timestamp
var hours = date.getHours();
// Minutes part from the timestamp
var minutes = "0" + date.getMinutes();
// Seconds part from the timestamp
var seconds = "0" + date.getSeconds();

// Will display time in 10:30:23 format
var formattedTime = hours + ':' + minutes.substr(-2) + ':' + seconds.substr(-2);

console.log(formattedTime);

For more information regarding the Date object, please refer to MDN or the ECMAScript 5 specification.

Answer 4

Based on @shomrat's answer, here is a snippet that automatically writes datetime like this (a bit similar to StackOverflow's date for answers: answered Nov 6 '16 at 11:51):

today, 11:23

or

yersterday, 11:23

or (if different but same year than today)

6 Nov, 11:23

or (if another year than today)

6 Nov 2016, 11:23

---

function timeConverter(t) {     
    var a = new Date(t * 1000);
    var today = new Date();
    var yesterday = new Date(Date.now() - 86400000);
    var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
    var year = a.getFullYear();
    var month = months[a.getMonth()];
    var date = a.getDate();
    var hour = a.getHours();
    var min = a.getMinutes();
    if (a.setHours(0,0,0,0) == today.setHours(0,0,0,0))
        return 'today, ' + hour + ':' + min;
    else if (a.setHours(0,0,0,0) == yesterday.setHours(0,0,0,0))
        return 'yesterday, ' + hour + ':' + min;
    else if (year == today.getFullYear())
        return date + ' ' + month + ', ' + hour + ':' + min;
    else
        return date + ' ' + month + ' ' + year + ', ' + hour + ':' + min;
}

Answer 5

The answer given by @Aron works, but it didn't work for me as I was trying to convert timestamp starting from 1980. So I made few changes as follows

function ConvertUnixTimeToDateForLeap(UNIX_Timestamp) {
    var dateObj = new Date(1980, 0, 1, 0, 0, 0, 0);
    dateObj.setSeconds(dateObj.getSeconds() + UNIX_Timestamp);
    return dateObj;  
}

document.body.innerHTML = 'TimeStamp : ' + ConvertUnixTimeToDateForLeap(1269700200);

So if you have a timestamp starting from another decade or so, just use this. It saved a lot of headache for me.

Answer 6

In moment you must use unix timestamp:

const dateTimeString = moment.unix(1466760005).format("DD-MM-YYYY HH:mm:ss");