Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates.
Unix Timestamp Converter turns epoch seconds or milliseconds into ISO, local, and UTC dates — and parses date strings back into Unix time. Conversion happens entirely in your browser.
Frequently Asked Questions
Does my input leave the browser?
For this tool, processing stays in your browser. Nothing is uploaded to ToolWorld servers.
Seconds or milliseconds?
Numbers under 100 billion are treated as seconds; larger values as milliseconds.
What date formats can I paste?
ISO-8601 strings and most formats accepted by JavaScript’s Date parser.