Epoch Converter — Free Epoch to Date Converter

This free epoch converter lets you instantly convert any epoch timestamp to a human-readable date and time. Paste a Unix timestamp in seconds or milliseconds and the tool detects the format automatically. All processing happens in your browser — no data is sent to any server.

What is Epoch Time?

Epoch time — also called Unix time or POSIX time — is the number of seconds that have elapsed since January 1, 1970 at 00:00:00 UTC. This reference point is known as the Unix epoch.

Unix time is used in virtually every operating system, programming language, and database. It provides a single, unambiguous integer that represents a moment in time regardless of timezone or locale. Because it is timezone-neutral (always UTC), it is the preferred format for storing and transmitting timestamps across distributed systems.

Epoch values can be expressed in seconds (10-digit numbers) or milliseconds (13-digit numbers). JavaScript, for example, uses milliseconds by default via Date.now(), while most other languages use seconds.

How to Convert Epoch to Human Date

  1. Paste your timestamp into the input field in the converter below. You can enter any Unix timestamp in seconds or milliseconds.
  2. The tool detects the format automatically — no need to specify whether you have seconds or milliseconds. A 10-digit value is treated as seconds; 13-digit as milliseconds.
  3. Results appear instantly — you see the UTC date, local time, ISO 8601 format, relative time, and more without clicking any button.

Current Unix Timestamp

1776195270

Free — No Limits, No Signup

Convert

or

Results

UTC Time
Local Time
ISO 8601
Relative Time
Unix (seconds)
Unix (milliseconds)
Day of Week
Day of Year
Week Number
Is DST

Epoch to Date — How It Works

Converting epoch to date means translating a count of seconds since January 1, 1970 UTC into a recognizable calendar date and time. The process is straightforward: the tool takes your epoch value and divides it by 86 400 (the number of seconds in a day) to find the number of complete days that have elapsed since the Unix epoch. From that day count, it calculates the year, month, and day using standard calendar arithmetic.

The remaining seconds after subtracting the full-day offset are then broken down into hours, minutes, and seconds. Once the UTC time is determined, your browser's timezone offset is applied to produce the equivalent local time.

Both 10-digit (seconds) and 13-digit (milliseconds) epoch values are handled automatically — no manual selection needed. The result is displayed in three formats: UTC, local time, and ISO 8601, so you can copy whichever representation your project requires.

Epoch Time in Programming Languages

JavaScript

// Get current epoch (milliseconds)
Date.now()

// Convert epoch seconds to Date
new Date(ts * 1000)

Python

import time
from datetime import datetime

# Get current epoch
time.time()

# Convert epoch to datetime
datetime.fromtimestamp(ts)

Java

import java.time.Instant;

// Get current epoch seconds
Instant.now().getEpochSecond()

// Convert epoch to Instant
Instant.ofEpochSecond(ts)

PHP

// Get current epoch
time()

// Convert epoch to formatted date
date('Y-m-d H:i:s', $ts)

Bash

# Get current epoch
date +%s

Go

import "time"

// Get current epoch seconds
time.Now().Unix()

// Convert epoch to Time
time.Unix(ts, 0)

Ruby

# Get current epoch
Time.now.to_i

# Convert epoch to Time
Time.at(ts)

Frequently Asked Questions

What is epoch time?

Epoch time is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. It is also called Unix time or POSIX time and serves as a universal reference for timestamps across all operating systems and programming languages.

What is epoch 0?

Epoch 0 corresponds to January 1, 1970 at 00:00:00 UTC. This moment is known as the Unix epoch start — the reference point from which all Unix timestamps are calculated.

Why does epoch start in 1970?

The Unix operating system was developed at Bell Labs in the late 1960s and early 1970s on the PDP-7 and PDP-11 computers. The year 1970 was chosen as a round, convenient starting point near the time the system was being created.

Is epoch time UTC?

Yes. Epoch time is always expressed in UTC (Coordinated Universal Time). It is timezone-neutral, which is one of the reasons it is so widely used for storing and exchanging timestamps across different systems and regions.

How to get the current epoch?

In JavaScript: Math.floor(Date.now() / 1000). In Python: int(time.time()). In Bash: date +%s. Most modern languages provide a built-in function to retrieve the current Unix timestamp.

Epoch in milliseconds vs seconds?

A 10-digit epoch value represents seconds (e.g. 1700000000), while a 13-digit value represents milliseconds (e.g. 1700000000000). JavaScript uses milliseconds by default via Date.now(); most other languages use seconds.

What happens at epoch 2147483647?

Epoch 2147483647 is the maximum value for a 32-bit signed integer. It corresponds to January 19, 2038 at 03:14:07 UTC. After this moment, 32-bit systems that store Unix time will overflow — an issue known as the Year 2038 problem (Y2K38).

How do I convert epoch to date?

Paste your epoch value into the converter above. The tool instantly shows the corresponding date in UTC, your local timezone, and ISO 8601 format. It also shows relative time (e.g. "3 years ago"), day of week, week number, and more. Click any Copy button to copy a single result.

Related Tools