Unix Timestamp Converter
Convert Unix seconds to UTC dates, or ISO dates to seconds.
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How it works
Paste your content or load the example. Choose the available options, run the tool, then copy or download the result.
A practical example
Unix · Seconds
0
Result
1970-01-01T00:00:00.000Z
Frequently asked questions
Is my input sent to a server?
No. Your content is processed in this browser. It is never sent to the server or saved.
What should I know about Unix Timestamp Converter?
Use seconds, not milliseconds. Dates must include a timezone, for example 2026-01-01T00:00:00Z.