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Timestamp Converter
Turn a Unix timestamp into a date in UTC, local time and ISO 8601, or get the timestamp of any date.
Free, no sign-up. Runs in your browser: nothing is uploaded.
How to use Timestamp Converter
- Paste a timestamp or pick a date.
- See every format at once.
- Copy the one you need.
Features
- Detects seconds, milliseconds and microseconds
- UTC, local, ISO 8601, RFC 2822, relative
- Live current time
Private by design
Everything you type is calculated by your browser on this device. Nothing is sent to openWorkstand or anyone else, so the Timestamp Converter is safe for private and work data, and it keeps working offline once the page has loaded. How local processing works
When to use the Timestamp Converter
- Read timestamps in log files.
- Convert dates for an API.
- Debug time zone bugs.
Frequently asked questions
What is a Unix timestamp?
The number of seconds since 1 January 1970, 00:00:00 UTC.
Step-by-step guides
- How to convert a Unix timestampTurn epoch seconds or milliseconds into a readable date in UTC or your time zone, convert a date back to a timestamp, and avoid the usual off-by-1000 and time-zone mistakes.
- How to decode a JWTRead the header, payload and expiry of a JSON Web Token safely, understand exp, iat and nbf, and why decoding is not the same as verifying.
Keep working with the result
openWorkstand also includes a free workspace with documents, spreadsheets, tasks, projects and a calendar that save to a folder on your computer.
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