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Unix Timestamp Converter

Convert Unix timestamps to human-readable dates and vice versa.

Current Unix Timestamp

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Current Date/Time (local)

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Unix Timestamp → Date

Seconds Milliseconds

Date → Unix Timestamp

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seconds

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milliseconds

How to Use

View current timeThe current Unix timestamp updates every second at the top of the tool.

Convert timestamp to dateEnter a Unix timestamp in the first section to see it in multiple date formats.

Choose seconds or millisecondsSelect whether your timestamp is in seconds (standard) or milliseconds (JavaScript).

Convert date to timestampUse the date picker in the second section to get the Unix timestamp for any date.

Copy resultsClick any result or the Copy button to copy values to your clipboard.

📌 All conversions happen in your browser. Dates are shown in your local timezone.

About Unix Timestamp Converter

Working with code and configuration files often means switching between formats, encoding strings, or validating syntax. Unix Timestamp Converter eliminates the need for desktop software or command-line utilities by giving you a clean, instant interface right in your browser. Paste your input, get your result — no accounts, no installations, no data leaving your machine.

Frequently Asked Questions

A Unix timestamp is the number of seconds elapsed since January 1, 1970, 00:00:00 UTC (the Unix Epoch). It's a universal way to represent time in programming, independent of timezone.

A 10-digit number is typically seconds (e.g. 1700000000). A 13-digit number is typically milliseconds (e.g. 1700000000000). JavaScript's Date.now() returns milliseconds; most Unix-based systems use seconds.

The tool shows both your local time and UTC. The multiple format rows clearly label which is UTC and which is your browser's local timezone.

32-bit systems store Unix timestamps as a signed integer, which overflows on January 19, 2038. Modern 64-bit systems don't have this problem and can store dates billions of years into the future.