Security
JWT Decoder
Decode JWT tokens to inspect the payload, header, claims, timestamps, and signature segment when you need to understand what a token contains.
What Unix Timestamp Converter helps you do
Use this Unix timestamp converter when a log entry, JWT claim, analytics event, or database record gives you epoch time and you need a human-readable date.
It also works the other way around when you need to turn a normal date into Unix seconds or milliseconds for APIs, scripts, or stored event data.
Use the tool
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Frequently asked questions
What is a Unix timestamp?
It is the number of seconds or milliseconds since January 1, 1970 UTC.
What is the difference between epoch seconds and milliseconds?
Epoch milliseconds include three extra digits, so they are more precise and usually appear as longer numeric values.
Can I convert a date back to Unix time?
Yes. Enter a readable date and the tool can convert it into Unix seconds or milliseconds.
Why does this page show UTC and local time?
Seeing both helps when you are comparing server logs, browser output, and timestamps from systems in different time zones.