Date and time

Timestamp Converter

Use this timestamp converter when logs, APIs, databases, analytics tools, or JavaScript code return time as Unix seconds, Unix milliseconds, or ISO strings. It shows readable local time, UTC time, Unix seconds, and Unix milliseconds in one place.

How to use Timestamp Converter

Paste a Unix timestamp, millisecond value, ISO date, or readable date string.
Compare UTC, local time, Unix seconds, and Unix milliseconds.
Copy the format required by your log, database, API, or report.

Example workflow

For API debugging, paste a 13-digit JavaScript timestamp such as 1779845912995 and check whether the event time matches your local time and UTC logs.

Privacy and limits

Timestamp conversion runs in your browser. The value you enter does not need to be sent to an application server.

Timezone labels depend on your browser and device settings, so use UTC when sharing technical timestamps with other people.

Common uses

Debug API logs that store Unix seconds.
Convert JavaScript millisecond timestamps into readable dates.
Compare UTC and local time before publishing schedules.
Check analytics, database, or server event times quickly.

FAQ

What timestamp formats are supported?

You can enter Unix seconds, Unix milliseconds, ISO date strings, or common date strings that your browser can parse.

Is the conversion private?

Yes. The conversion runs in your browser and the text you enter is not uploaded.

Why do UTC and local time differ?

UTC is a global time standard. Local time uses your browser and device timezone.