Timestamp Converter
Convert Unix timestamps, milliseconds, ISO dates, and UTC date strings locally.
Timestamp workspace
Convert Unix timestamps and ISO dates locally.
Result
Output
TimestampsecondsUTC
Files are processed in your browser. Output is UTC. No data is uploaded.
Questions
Does this handle seconds and milliseconds?
Yes. Choose seconds, milliseconds, or auto-detect when converting Unix timestamps.
Why does the output use UTC?
UTC avoids timezone ambiguity and makes timestamp conversions easier to compare across systems.
Does Utilumo upload my input?
No. This tool is designed for local browser processing and does not send your input to a server.
Do I need an account?
No. Utilumo tools are built to work without accounts or sign-in.