Convert Date to Timestamp in JavaScript – How to Guide

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I want to convert date to timestamp, my input is 26-02-2012. I used

new Date(myDate).getTime();

It says NaN.. Can any one tell how to convert this?

Best Answer

Split the string into its parts and provide them directly to the Date constructor:

Update:

var myDate = "26-02-2012";
myDate = myDate.split("-");
var newDate = new Date( myDate[2], myDate[1] - 1, myDate[0]);
console.log(newDate.getTime());

Updated: Also, you can use a regular expression to split the string, for example:

const dtStr = "26/02/2012";
const [d, m, y] = dtStr.split(/-|\//); // splits "26-02-2012" or "26/02/2012"
const date = new Date(y, m - 1, d);
console.log(date.getTime());

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JavaScript – Convert Date to Timestamp

In response to your edit:

You need to parse the date string to build a Date object, and then you can get the timestamp, for example:

function getTimestamp(str) {
  var d = str.match(/\d+/g); // extract date parts
  return +new Date(d[0], d[1] - 1, d[2], d[3], d[4], d[5]); // build Date object
}

getTimestamp("2010-03-09 12:21:00"); // 1268158860000

In the above function I use a simple regular expression to extract the digits, then I build a new Date object using the Date constructor with that parts (Note: The Date object handles months as 0 based numbers, e.g. 0-Jan, 1-Feb, ..., 11-Dec).

Then I use the unary plus operator to get the timestamp.

Note also that the timestamp is expressed in milliseconds.

Best Answer

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