Timestamp Converter
Unix epoch to human dates, and back.
Runs 100% in your browser — nothing is uploaded
Convert between Unix timestamps and human-readable dates in your browser. See any timestamp in local, UTC, and ISO 8601 formats with a relative time, and turn a date and time back into seconds or milliseconds. Accepts seconds or ms; nothing is uploaded.
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Frequently asked questions
Does it accept seconds or milliseconds?
Both. It detects the magnitude and interprets your input as seconds or milliseconds automatically.
What formats does it show?
Local time, UTC, ISO 8601, and a relative time like '3 days ago'.
Can I convert a date back to a timestamp?
Yes — pick a date and time to get the Unix value in both seconds and milliseconds.
Is anything uploaded?
No. All conversions run locally in your browser.
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