Timestamp converter · Guide
Timestamp Converter Online: Unix Time to Date
A timestamp converter turns a Unix epoch number into a readable date and converts a date back to a timestamp. This guide explains epoch time, the seconds-versus-milliseconds trap, and how to read the results.
What a Unix timestamp is
A Unix timestamp counts the seconds since 1 January 1970 UTC. It is compact and timezone-free, which is why logs, tokens and databases use it — but it is unreadable to humans without conversion.
The converter shows both the ISO 8601 form (UTC) and your local time, so you can read the moment in whichever frame you need.
Seconds or milliseconds
Unix timestamps come in seconds (10 digits today) and milliseconds (13 digits). Mixing them up shifts dates by decades. The converter detects the likely unit, but always sanity-check the resulting year.
Convert a date back
Enter a date and the converter returns the corresponding timestamp. This is handy for building queries or test fixtures that expect epoch values.
Frequently asked questions
Are timestamps in UTC?
A Unix timestamp itself is timezone-free — it is seconds since the epoch in UTC. The converter shows both the UTC/ISO value and your local time for clarity.
Ready to try it?
Open the free browser-based Timestamp converter and apply what you just read — no sign-up, runs locally.
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