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Date to Unix Timestamp

Convert any date/time to Unix timestamp (seconds or milliseconds) and back.

Current Unix Timestamp

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Local Time

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Date → Timestamp

Timestamp → Date

About Date to Unix Timestamp

Unix timestamps (also called epoch time) represent a specific moment as the number of seconds since January 1, 1970 UTC. This tool converts any human-readable date and time into a Unix timestamp in both seconds and milliseconds, and converts timestamps back into readable dates. It supports local time and UTC input, outputs ISO 8601 and UTC string formats, and shows a live-updating current timestamp. Ideal for developers debugging APIs, working with databases, or parsing log files that use epoch time.

How to Use

Enter a date or Unix timestamp Use the date picker to select a date and time, or paste a Unix timestamp into the reverse converter. Choose Local Time or UTC.

See instant conversion The tool instantly shows the result in multiple formats: seconds, milliseconds, ISO 8601, and UTC string.

Copy the result Click any result box to copy the value to your clipboard. Use the current timestamp bar to grab the live epoch time.

🔒 Privacy note: All processing happens locally in your browser. Your data is never sent to any server.

Why Use Date to Unix Timestamp?

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Real-Time Conversion Results update instantly as you type — no need to press a button. Quickly compare multiple values or find the exact conversion you need.

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High Precision Date to Unix Timestamp uses accurate conversion factors from international standards. Results are precise enough for engineering, scientific, and professional use.

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Mobile Ready Fully responsive design works perfectly on phones and tablets. Great for quick conversions when you're shopping, cooking, or traveling.

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All Common Units Covers the most commonly needed unit conversions, including both metric (SI) and imperial systems, so you always find what you're looking for.

Frequently Asked Questions

A Unix timestamp is the number of seconds (or milliseconds in JavaScript) since January 1, 1970, 00:00:00 UTC. It's timezone-independent and universally used in programming.

Unix standard uses seconds (10 digits, e.g. 1700000000). JavaScript's Date.now() returns milliseconds (13 digits, e.g. 1700000000000). APIs vary — check your documentation.

Unix timestamps are always in UTC. If you select "Local Time", the date is interpreted as your browser's local timezone. "UTC" treats the date as UTC. The resulting timestamp is the same universal moment regardless.

Unix epoch time (or Unix timestamp) is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC. It's widely used in programming, databases, and APIs as a universal time representation.

A 10-digit timestamp is in seconds (standard Unix time), while a 13-digit timestamp is in milliseconds. JavaScript's Date.now() returns milliseconds, while most server-side languages use seconds.