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Free Unix Timestamp Converter Online

Convert Unix epoch timestamps to readable dates and convert a date and time back to Unix seconds or milliseconds. See UTC, local time, and ISO 8601 results directly in your browser.

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Privacy note: this browser-first converter processes ordinary calculations locally. Do not enter passwords, private keys, payment data or other confidential information into any online tool.
Current Unix Timestamp
0000000000
Enter Unix epoch seconds. A 13-digit value can also be interpreted as milliseconds.
Select both a date and time. The selected clock time is interpreted in your browser's local time zone.
Enter a Unix timestamp or select a date and time above to view conversion results.

Unix Timestamp Converter Online

This free Unix timestamp converter lets you convert epoch time into a human-readable date and convert a date and time back into a Unix timestamp. Results include UTC time, your browser's local time, ISO 8601 format, and epoch milliseconds.

A Unix timestamp is commonly used in software, APIs, databases, logs, websites, and development workflows because it provides a compact numeric representation of a point in time. This tool is useful when checking a timestamp from an application, converting an epoch value for debugging, or turning a calendar date into a timestamp for a technical workflow.

For US and UK users: the converter works with ordinary date-and-time selections in your browser and reports the corresponding UTC and local representations. It is useful for checking timestamps across systems, logs, APIs, websites, and development environments without manually calculating epoch seconds.

How to Use the Unix Timestamp Converter

  1. To convert epoch time to a date, enter a Unix timestamp such as 1790649727 and choose Convert to Date.
  2. To convert a date to Unix time, select the date and time in the second field and choose Convert to Timestamp.
  3. Review UTC, local time, ISO 8601, seconds, and milliseconds in the result area.
  4. Use Use Current Time when you need the current Unix timestamp.

Unix Epoch Time, Seconds and Milliseconds

Unix epoch time is normally represented in seconds from 1970-01-01 00:00:00 UTC. Some programming languages and platforms use milliseconds instead. This converter distinguishes a normal 10-digit Unix timestamp from a 13-digit millisecond timestamp and shows epoch milliseconds alongside date conversions.

UTC, Local Time and ISO 8601

The same moment can be displayed in different time zones without changing the underlying instant. The UTC result provides a standard reference, while local time uses the time zone configured by your browser. ISO 8601 provides a machine-readable date-time representation that is commonly used in APIs and software systems.

Common Uses for an Epoch Timestamp Converter

Developers and other users can use an epoch converter to inspect API timestamps, read application logs, check database values, convert Unix time for testing, compare event times, or turn a calendar date into a numeric timestamp. The tool is also useful when troubleshooting systems that exchange timestamps between different platforms.

Frequently Asked Questions

What is a Unix timestamp?
A Unix timestamp represents a point in time as seconds elapsed since 1970-01-01 00:00:00 UTC. Negative values can represent times before the Unix epoch.
How do I convert a Unix timestamp to a date?
Enter the timestamp in the first field and select Convert to Date. The converter displays UTC, local browser time, ISO 8601, and epoch milliseconds.
How do I convert a date to a Unix timestamp?
Select a date and time in the Date and Time to Unix Timestamp field and click Convert to Timestamp. The tool returns both seconds and milliseconds.
Does it support Unix timestamps in milliseconds?
Yes. When converting a timestamp to a date, a 13-digit value is interpreted as milliseconds. The result also includes epoch milliseconds.
Does the date-to-timestamp conversion use my local time zone?
Yes. The selected date and clock time are interpreted in the browser's local time zone and then converted to the corresponding Unix timestamp.
Is the Unix timestamp converter free?
Yes. ToolsPoint Online provides this converter free to use in modern desktop and mobile browsers.

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Accuracy and Time Zone Note

This converter reports the selected or entered instant according to standard browser date and time behavior. The date-to-timestamp mode uses your browser's local time zone; UTC, ISO 8601, and epoch milliseconds are shown as reference formats. For production systems, always confirm the expected time zone and timestamp unit used by the application or API you are working with.