Timestamp Converter
Convert Unix timestamps and readable UTC dates.
Dates are normalized to UTC. Auto-detect treats magnitudes below 10 billion as seconds; choose a unit explicitly for ambiguous dates. Copied timestamps use seconds.
Behind the result
About this Tool
Move between Unix seconds, Unix milliseconds, and ISO 8601 UTC time in your browser.
How it works
Converts Unix seconds or milliseconds to UTC ISO 8601. Auto-detect uses seconds below a magnitude of 10 billion; select a unit explicitly for ambiguous dates. Copied timestamps use seconds.
A practical way to use it
Translate a timestamp from an API log into a readable UTC date or create an epoch value from ISO time.
Use results as a practical aid, and verify important decisions against your own source data and qualified guidance.
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