⏱️ Developer Tools

Unix Timestamp Converter

Convert Unix epoch time to a human date and back — with a live clock and relative time.

Current Unix time

1785687844

1785687844919 ms · Sun, 02 Aug 2026 16:24:04 GMT

Timestamp → Date

UTCSun, 02 Aug 2026 16:24:04 GMT
Local8/2/2026, 4:24:04 PM
ISO 86012026-08-02T16:24:04.000Z
Relativejust now

Date → Timestamp

Seconds1785687840
Milliseconds1785687840000
ISO 86012026-08-02T16:24:00.000Z
Overview

Unix Timestamp Converter: epoch time, made readable

A Unix timestamp is the number of seconds that have passed since midnight UTC on 1 January 1970 — a single number that pins down an exact moment, used everywhere in databases, logs, APIs and file metadata. It is precise and timezone-free, but it is not something a human can read at a glance. This converter turns any timestamp into a clear date in both UTC and your local time, with a relative description like '3 days ago', and converts a date back into a timestamp in seconds and milliseconds.

It auto-detects whether a number is in seconds or milliseconds, shows a live current timestamp so you can grab 'now' instantly, and runs entirely in your browser. Whether you are debugging a log line, setting an expiry, or checking when a token was issued, it removes the mental arithmetic.

100% freeNo sign-upLive clockRuns in your browser
How to use it
  1. 1Paste a timestamp into 'Timestamp → Date' to see the UTC, local, ISO and relative time.
  2. 2Use the Auto / Seconds / Millis buttons if you need to force the unit.
  3. 3In 'Date → Timestamp', pick a date (or press Now) to get the epoch value.
  4. 4Copy the current Unix time from the live banner at the top.
Key features
  • Convert epoch time to UTC, local and ISO 8601 dates
  • Convert any date back to seconds and milliseconds
  • Live, updating current Unix timestamp
  • Auto-detects seconds vs milliseconds
  • Human-friendly relative time (e.g. 'in 2 hours')
  • 100% client-side — nothing is uploaded

Frequently asked questions

What is a Unix timestamp?
It is the count of seconds since 00:00:00 UTC on 1 January 1970, called the Unix epoch. Because it is a single UTC-based number, it represents an exact instant with no timezone ambiguity.
Seconds or milliseconds — how do I tell?
Timestamps in seconds are about 10 digits today; in milliseconds they are about 13. This tool auto-detects by size, and you can force the unit with the toggle.
What is the year 2038 problem?
Systems that store the timestamp in a signed 32-bit integer overflow on 19 January 2038. Modern systems use 64-bit timestamps, which push the limit hundreds of billions of years away.
Is my data uploaded?
No. All conversion happens locally in your browser using JavaScript's Date API.
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Full guide

Unix Time Explained — The Epoch, Timezones & the 2038 Problem

What Unix time is, why it's UTC-based, seconds vs milliseconds, ISO 8601, and the famous year-2038 overflow.

The epoch & UTCSeconds vs millisecondsThe 2038 problem

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