Quick Answer
What is a Unix timestamp?
// Answer
A Unix timestamp is the number of seconds since January 1, 1970, 00:00:00 UTC (the "epoch"). It is a compact, timezone-independent way to store a moment in time. For example, 1700000000 corresponds to mid-November 2023. Milliseconds versions multiply by 1000.
Why use this tool
Decode timestamps fast
Logs, databases, APIs, and JWTs store times as Unix timestamps. Convert them to a readable date — in UTC and your local time — or go the other way to get a timestamp for a specific date. Click "Use now" for the current epoch time.
FAQ
Frequently asked questions
Midnight UTC on January 1, 1970. Timestamps count seconds from that moment.
Unix timestamps are traditionally in seconds; JavaScript uses milliseconds. This tool shows both.
Yes, it shows both UTC and your local time so you can compare.
Yes, conversion runs entirely in your browser.
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