How to Convert Unix Timestamps to Human-Readable Dates

A Unix timestamp, or epoch time, represents the number of seconds (or milliseconds) that have elapsed since January 1, 1970 (UTC).

How to Convert Unix Timestamps in JavaScript

To parse a Unix timestamp in JavaScript, you create a new Date object:

1. From Seconds (10-digit epoch):

Multiply by 1000 since JavaScript dates work in milliseconds:

const seconds = 1787321000;
const date = new Date(seconds * 1000);
console.log(date.toISOString());

2. From Milliseconds (13-digit epoch):

Pass directly into the Date constructor:

const ms = 1787321000000;
const date = new Date(ms);
console.log(date.toLocaleString());