Skip to content

Convert Unix Time to Date with JavaScript

Often when working with dates, you’ll get a date that’s in the form of a Unix Time stamp. Such a time stamp looks like this:


This timestamp represents the number of milliseconds that have elapsed since January 1, 1970 (the Unix epoch). This is not usually what you want but you can convert it to a readable US-based format using the following code:

function convertUnixTime(unix) {
  let a = new Date(unix * 1000),
      year = a.getFullYear(),
      months = ['January','February','March','April','May','June','July','August','September','October','November','December'],
      month = months[a.getMonth()],
      date = a.getDate(),
      hour = a.getHours(),
      min = a.getMinutes() < 10 ? '0' + a.getMinutes() : a.getMinutes(),
      sec = a.getSeconds() < 10 ? '0' + a.getSeconds() : a.getSeconds();
  return `${month} ${date}, ${year}, ${hour}:${min}:${sec}`;

// Pass in a UNIX timestamp (milliseconds since January 1, 1970)
console.log(convertUnixTime(1610796674)); // "January 16, 2021, 6:31:14"
Code language: JavaScript (javascript)

The final line in the function is what displays the format “January 1, 1970”. If you’d like to use a U.K. or European-based format, you can change the order of the items to display it as “1 January, 1970” or similar. You can also abbreviate the months as “Jan”, “Feb”, etc. by changing the months string. If you don’t want the hour, minutes, and seconds, simply remove them from the return statement.

The interactive CodePen demo below shows this in action:

Note: To the best of our knowledge, the information above and the snippet are accurate and up to date. However, in case you notice something wrong, please report snippet or leave a comment below.
View all Snippets
Louis Lazaris

Inline Feedbacks
View all comments

Or start the conversation in our Facebook group for WordPress professionals. Find answers, share tips, and get help from other WordPress experts. Join now (it’s free)!

Would love your thoughts, please comment.x

Most Searched Articles

Best JavaScript Libraries and Frameworks: Try These 14 in 2024

In this post, we look at the best JavaScript libraries and frameworks to try out this year. Why? Well, with JavaScript being available in every web browser, this makes it the most accessible programming language of ...

20 Best Free WordPress Themes for 2024 (Responsive, Mobile-Ready, Beautiful)

If you're looking for only the best free WordPress themes in the market for this year, then you're in the right place. We have more than enough such themes for you right ...

12 Best WordPress Hosting Providers of 2024 Compared and Tested

Looking for the best WordPress hosting that you can actually afford? We did the testing for you. Here are 10+ best hosts on the market ...

Handpicked Articles

How to Make a WordPress Website: Ultimate Guide for All Users – Beginners, Intermediate, Advanced

Many people wonder how to make a WordPress website. They’ve heard about WordPress, its incredible popularity, excellent features and designs, and now they want to join the pack and build a WordPress website of their own. So, where does one get ...

How to Start an Ecommerce Business: Ultimate Guide for 2024

Is this going to be the year you learn how to start an eCommerce business from scratch? You’re certainly in the right place! This guide will give you a roadmap to getting from 0 to a fully functional eCommerce business. ...