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Unix Timestamp Converter – Epoch to Date & Back

Convert Unix timestamps (epoch seconds or milliseconds) to human-readable dates and dates to timestamps. Live current epoch time, UTC and local.

  • Free, no sign-up
  • Runs in your browser, nothing uploaded

About the Unix Timestamp Converter

Convert Unix epoch timestamps to dates in your local time zone and UTC, or turn a date into a timestamp. Seconds, milliseconds, microseconds and nanoseconds are detected automatically.

Key features

  • Live current Unix time in seconds and milliseconds
  • Timestamp to date in your time zone and UTC
  • Date to timestamp, from local time or UTC
  • Auto-detects seconds, milliseconds, microseconds and nanoseconds
  • ISO 8601, RFC 2822 and relative time
  • One-click copy for every value

Convert epoch time to dates and back

Developers meet Unix timestamps everywhere: logs, databases, APIs, JWT tokens and cookies. Paste a timestamp to see the date in your local time zone and UTC, or pick a date to get its timestamp.

Timestamp sizes

Digits (today)UnitExampleCommon in
10Seconds1700000000Unix, PHP, Python, SQL
13Milliseconds1700000000000JavaScript, Java, JSON APIs
16Microseconds1700000000000000PostgreSQL, Python datetime
19Nanoseconds1700000000000000000Go, InfluxDB

1700000000 is 14 November 2023, 22:13:20 UTC.

Notable timestamps

TimestampDate (UTC)
01 Jan 1970 00:00:00
10000000009 Sep 2001 01:46:40
123456789013 Feb 2009 23:31:30
200000000018 May 2033 03:33:20
214748364719 Jan 2038 03:14:07 (32-bit limit)

Getting the current timestamp in code

LanguageCode
JavaScriptMath.floor(Date.now() / 1000)
Pythonint(time.time())
PHPtime()
JavaInstant.now().getEpochSecond()
Gotime.Now().Unix()
SQL (PostgreSQL)extract(epoch from now())
Bashdate +%s

Decode token expiry times with the JWT Decoder, or calculate the days between two dates with the Date Difference Calculator.

How to use the Unix Timestamp Converter

  1. Open the tool. It's ready to use immediately, with nothing to install.
  2. Enter your entries, numbers or settings, or keep the defaults.
  3. Press the main button (spin, roll, start or generate) and watch the result.
  4. Repeat as often as you like; results are generated fresh each time in your browser.

Frequently asked questions

What is a Unix timestamp?

The number of seconds since 00:00:00 UTC on 1 January 1970 (the Unix epoch), not counting leap seconds. It's the same everywhere in the world at the same moment, which makes it ideal for storing times in software.

Seconds or milliseconds?

Unix tools, PHP, Python's time.time() and most databases use seconds (10 digits today). JavaScript's Date.now(), Java and many APIs use milliseconds (13 digits). The converter detects which one you entered.

What is the year 2038 problem?

Systems storing timestamps as signed 32-bit integers overflow on 19 January 2038 at 03:14:07 UTC (2,147,483,647 seconds). Modern systems use 64-bit values, which last for billions of years.

Does a timestamp have a time zone?

No. A timestamp is always UTC-based. Time zones only matter when you display it as a local date and time.

Are the random results fair?

Yes. The wheel, random number generator, coin flip and dice use your browser's cryptographically secure random number generator (crypto.getRandomValues) with unbiased sampling, so every outcome is equally likely.

Do these tools work offline or on my phone?

They run entirely in your browser and work on phones, tablets and computers. Once a page has loaded, most tools keep working without a connection.

Is anything I type saved on your servers?

No. The notepad saves notes only in your own browser's local storage, and nothing else you enter is stored.

Last updated:

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