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Timestamp Converter
Move between Unix seconds, Unix milliseconds, and ISO 8601 UTC time in your browser.
Ready to useProcesses inputs in your browser
Dates are normalized to UTC. Ten-digit epoch values are read as seconds; longer values are read as milliseconds.
Behind the result
About this Tool
Move between Unix seconds, Unix milliseconds, and ISO 8601 UTC time in your browser.
How it works
Interprets 10-digit values as Unix seconds and longer values as milliseconds, then uses UTC ISO 8601 output.
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.
Share this Tool without your inputs or results.