UNIX Timestamp Converter

Convert between UNIX timestamps and human-readable dates — instantly

Convert a UNIX timestamp (seconds or milliseconds) to a readable date and time.

UNIX Timestamp

Enter seconds (10 digits) or milliseconds (13 digits)

Convert a specific date and time to a UNIX timestamp.

Date

Time

Live current UNIX timestamp and local time — updates every second.

Current UNIX Timestamp

—

🌍UTC Time—

📅ISO 8601—

⏱️Milliseconds—

🗓️Day of Year—

Check our other related calculators:

Base64 Encoder/Decoder JSON Formatter Random Number Generator

UNIX Timestamp Converter:
Convert any UNIX timestamp to a human-readable date and time, or convert a specific date back to a UNIX timestamp. Also includes a live current timestamp display that updates every second — useful for developers, database work, and API debugging.

Results use your local browser timezone for local time display. UTC results are timezone-independent.

Frequently Asked Questions

What is a UNIX timestamp?

A UNIX timestamp is the number of seconds elapsed since January 1, 1970, 00:00:00 UTC (known as the Unix epoch). It is a standard way to represent time in programming and databases.

What is the difference between seconds and milliseconds timestamps?

Most UNIX timestamps are in seconds (10 digits). JavaScript and some APIs use milliseconds (13 digits). This converter automatically detects which format you're using.

What is the maximum UNIX timestamp?

The 32-bit signed integer limit is 2,147,483,647, which corresponds to January 19, 2038 — known as the Year 2038 problem. Modern 64-bit systems don't have this limitation.