How can I convert datetime : 1518427800 to hh:mm:ss dd/mm/yyyy in node.js?

Question

I am trying to built a attendance app for my college where in I am fetching data for a web time-table application which has a sql backend and there the lecture start time and end time is in format 1518427800 . I am not even sure what format is this.

I am using node.js to fetch from mysql and push it in firebase database, but before i pushing it in firebase. i want to convert the datetime format into something that is understandable.

I am not allowed to alter anything in the web application or its database.

Answer 1

It is a unix time stamp and represents the number of seconds since 1970-01-01.

You can just convert it to a number of milliseconds and pass it to the Date constructor:

var datetime = new Date(1518427800 * 1000); 

Answer 2

As mentioned in the above answer, it is a UNIX timestamp

Using moment it is very easy to convert into a readable format

const moment = require('moment')

moment(1553939271155).format("DD/MM/YYYY") // outputs "30/03/2019"
moment(1553939271155).format("DD/MMM/YYYY") // outputs "30/Mar/2019"
moment(1553939037562).format("YYYY/MM/DD") // outputs "2019/03/30"

Answer 3

1518427800 is an epoch timestamp. It is the number of seconds since jan 1 1970.

you can simply convert it into the number of milliseconds

ex. 1518427800*1000

then , pass it to the DATE constructor

ex. var datetime = new Date(1518427800 * 1000);