Javascript Convert Date Time string to Epoch

Question

so I give up...been trying to do this all day;

I have a string that supplies a date and time in the format dd/MM/yyyy hh:mm ( 04/12/2012 07:00 ).

I need to turn that into an Epoch date so I can do some calculations upon it. I cannot modify the format in which the date time is sent to me.

JavaScript or jQuery is fine.

Answer 1

var someDate = new Date(dateString);
someDate = someDate.getTime();

Answer 2

JavaScript dates are internally stored as milliseconds since epoch. You just need to convert it to a number, eg with the unary + operator, to get them. Or you can use the .getTime method .

The harder will be parsing your date string. You likely will use a regex to extract the values from your string and pass them into Date.UTC :

var parts = datestring.match(/(\d{2})\/(\d{2})\/(\d{4}) (\d{2}):(\d{2})/);
return Date.UTC(+parts[3], parts[2]-1, +parts[1], +parts[4], +parts[5]);

This will yield 1354604400000 ms for your example date.

Answer 3

You can use Date.parse(date) .

function epoch (date) {
  return Date.parse(date)
}

const dateToday = new Date() // Mon Jun 08 2020 16:47:55 GMT+0800 (China Standard Time)
const timestamp = epoch(dateToday)

console.log(timestamp) // => 1591606075000

Answer 4

You can use the momentjs library to do this rather easily.

var epoch = moment(str).unix();

http://momentjs.com/

Answer 5

i used this code to convert my string datetime to epoch

new Date(<datetime string>').getTime()

for example :

let epoch = new Date('2016-10-11').getTime()

Answer 6

var time = new Date().getTime() / 1000 + 900 + 330*60;

console.log("time = "+time);

getTime() will return current time with milleseconds in last 3 digit so divide it by 1000 first. Now I have added 900 means 15 min which I need from my current time(You can delete if you do not require further delay time), 330*60(5 hr 30) is required to convert GMT time to IST which is my current region time.

Use below site to test your time :-

https://www.epochconverter.com/

Hope it will help you :)

Answer 7

My answer is to convert current time to epoch time using JavaScript

const currentDate = Math.floor(new Date() / 1000);

console.log( currentDate ); //whatever value it will print you can check the same value to this website https://www.epochconverter.com/ to confirm.

Answer 8

Number(new Date('04/12/2012 07:00'))

Answer 9

Easiest way to do is -

const moment = require('moment')


 function getUnixTime () { return this.getTime() / 1000 | 0 }
let epochDateTime = getUnixTime(new Date(moment().add(365, 'days').format('YYYY- 
MM-DD hh:mm:ss')))  

Answer 10

Since your date format is dd/MM/yyyy hh:mm, you will need to change the date format (Step 1). Else you can go to (Step 2).

Step 1. Change Date Format to MM/dd/yyyy hh:mm

  var currentTime   = "21/02/2021 12:00"
  var monthPosition = currentTime.split('/', 2).join('/').length
  var day           = currentTime.substring(0, currentTime.indexOf('/'))
  var month         = currentTime.substring(currentTime.indexOf('/') + 1, monthPosition);
  var time          = month + "/" + day + currentTime.substring(month.length + day.length  + 1); //"02/21/2021 12:00"

Step 2: Change Date to Epoch Time

var epochTime = Date.parse(time);

//or get current time of epoch time
var currentEpoch = Date.parse(new Date());

Note: If you trying to do Date.parse() with new Date(), and got an error of parsing date string, add toString()

var currentEpoch = Date.parse(new Date().toString());

Answer 11

Single Line Code Returns in seconds

let Epoch= Date.parse(date + '') / 1000 //date in Date() Format

Answer 12

This is how I would do it

Math.trunc(new Date(date).getTime()/1000)

result

1671878316