Unix Timestamp Converter
Convert a Unix timestamp to a readable date and time, or the other way around, with ISO 8601, UTC, local, and relative formats shown side by side.
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Frequently asked questions
What is a Unix timestamp?+
The number of seconds (sometimes milliseconds) that have elapsed since January 1, 1970 00:00:00 UTC, widely used to store dates in databases and APIs.
How does it know if I entered seconds or milliseconds?+
If the number has more than 10 digits, it's treated as milliseconds; 10 digits or fewer is treated as seconds.
Does the local date use my computer's timezone?+
Yes, the "local date & time" field and "Local string" output use your browser's timezone setting.