Timestamp Converter
Convert a Unix timestamp to a readable date, or pick a date to get its epoch timestamp — in seconds or milliseconds.
How to use
- Enter a Unix timestamp, or click Now to use the current time.
- Switch between seconds and milliseconds to match your source.
- Or enter a date below to get its timestamp instead.
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Frequently asked questions
Seconds or milliseconds — which do I have?
Unix timestamps in seconds are 10 digits today (e.g. 1735000000); JavaScript's Date.now() and many APIs use milliseconds, which are 13 digits.
What timezone is shown?
The Local row uses your browser's timezone; the UTC and ISO 8601 rows are timezone-independent.
Is my input sent anywhere?
No. Conversion uses the browser's built-in Date object — nothing leaves your device.
About this tool
Timestamp Converter is a free, browser-based tool from Tools Platform. It runs entirely on your device — your data is never uploaded to a server, so it stays completely private. There are no accounts, no watermarks, and no limits. Convert a Unix timestamp to a readable date, or pick a date to get its epoch timestamp — in seconds or milliseconds.