How do I convert a Unix timestamp to a date?

Paste your Unix timestamp (in seconds or milliseconds) into the input field above and press Convert. The tool instantly shows the equivalent date and time in UTC, your local timezone, and 30+ major world timezones.

What is the difference between Unix time in seconds and milliseconds?

Unix time in seconds is the classic POSIX standard — a 10-digit number (e.g. 1708780800). Milliseconds are 1000× larger — a 13-digit number (e.g. 1708780800000) — commonly used in JavaScript (Date.now()), Java, and most web APIs. Use the seconds/ms toggle in the tool to switch between both.

What is epoch time / Unix epoch?

The Unix epoch is the reference point: midnight UTC on 1 January 1970 (1970-01-01T00:00:00Z). All Unix timestamps count forward (positive) or backward (negative) from this exact moment.

How do I convert a date to a Unix timestamp?

Use the 'Date → Epoch' tab in the tool above. Pick your date, time, and timezone, and the tool calculates the corresponding Unix timestamp in both seconds and milliseconds.

Unix Timestamp Converter

Convert Unix / epoch timestamps to dates, dates to epoch, and see any moment across 30+ world timezones instantly. Supports seconds, milliseconds, ISO 8601, and RFC 2822.

Current Unix Time

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Live

Unix Timestamp

What is a Unix Timestamp?

A Unix timestamp — also called epoch time or POSIX time — is the number of seconds (or milliseconds) that have elapsed since the Unix epoch: 00:00:00 UTC on 1 January 1970. It is an integer, timezone-independent, and universally used in programming, APIs, databases, and operating systems worldwide.

A 10-digit number (e.g. 1708780800) is a Unix timestamp in seconds. A 13-digit number (e.g. 1708780800000) is in milliseconds, the format used by JavaScript's Date.now().

Frequently Asked Questions

What is a Unix timestamp?

A Unix timestamp is the number of seconds elapsed since 00:00:00 UTC on 1 January 1970 (the Unix epoch). It is a timezone-independent integer, making it ideal for storing and transmitting time in databases, APIs, and distributed systems everywhere in the world.

How do I convert a Unix timestamp to a readable date?

Paste your Unix timestamp into the Epoch → Date panel above and press the toggle for seconds (s) or milliseconds (ms). The tool instantly displays the date in UTC, ISO 8601, RFC 2822, your local timezone, and 30+ world timezones.

What is the current Unix timestamp right now?

The live current Unix timestamp is shown at the top of the tool, updating every second. You can also click the Now ⚡ button to load it into the converter. In code:

JavaScript: Math.floor(Date.now() / 1000)
Python: import time; int(time.time())
PHP: time()
SQL: UNIX_TIMESTAMP() (MySQL) or EXTRACT(EPOCH FROM NOW()) (Postgres)

Seconds vs milliseconds — which should I use?

Seconds (10-digit) are the POSIX standard, used in C, Python (time.time()), Unix shell, and most server-side languages.

Milliseconds (13-digit) are used in JavaScript (Date.now()), Java (System.currentTimeMillis()), and most modern web APIs.

Use the s / ms toggle in the tool to switch between both.

What is the Unix Year 2038 problem?

Legacy 32-bit signed integers storing Unix timestamps will overflow on 19 January 2038 at 03:14:07 UTC (timestamp 2,147,483,647). Systems still using 32-bit time_t may fail or wrap to 1901. Modern 64-bit systems are immune — they can represent times billions of years into the future.

What is the difference between UTC and Unix time?

UTC (Coordinated Universal Time) is a time standard, while Unix time is a counting system. Unix timestamps count from the UTC epoch without leap-second adjustments, so they are approximately synchronized with UTC but not identical. For everyday conversion purposes they are treated as equivalent.

How do I convert a date and time to a Unix timestamp?

Switch to the Date → Epoch tab, pick your date and time, select the timezone (important — the same clock time in New York vs London produces different timestamps), and the tool shows you the Unix timestamp in both seconds and milliseconds.

Unix Timestamp Converter

What is a Unix Timestamp?

Frequently Asked Questions

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