Unix Timestamp Converter
Convert between a Unix epoch timestamp and a human date and time.
Results update as you type.
About this calculator
A Unix timestamp is the number of seconds since 1 January 1970 UTC (the "epoch"). This converter turns an epoch timestamp into a readable UTC and local date, or takes a date and time and returns its epoch value. It is a staple tool for developers reading logs, databases and API responses.
Frequently asked questions
Is a Unix timestamp in seconds or milliseconds?
The classic Unix timestamp is in seconds since the 1970 epoch. JavaScript and some APIs use milliseconds (1000× larger). This tool works in seconds; divide a millisecond value by 1000 first.
What time zone does the timestamp represent?
A Unix timestamp has no time zone — it is an absolute instant. The tool shows that instant both as UTC and in your browser’s local time, which is why the two lines can differ by your UTC offset.
Results are estimates for general guidance only, not financial, medical or tax advice.