Convert Unix timestamps to dates and back. Live clock and multiple output formats.
Paste a Unix timestamp to convert it to a human-readable date, or fill in date fields to generate a timestamp. The live clock shows the current epoch in real-time.
The number of seconds elapsed since January 1, 1970 00:00:00 UTC (the "Unix epoch"). It's the standard way computers represent time internally.
Unix timestamps are traditionally in seconds (10 digits). JavaScript uses milliseconds (13 digits). This tool auto-detects and handles both.
The converter shows both UTC and your local timezone. The date → timestamp section uses your local timezone by default.
No. All conversions happen in your browser. Nothing is sent to a server.