About this tool
Instantly convert between different time formats. All conversions happen locally in your browser - no data is sent to any server.
Supported formats
Unix (seconds) - The standard format used by most backend systems and databases
Unix (milliseconds) - Common in JavaScript, Java, and frontend applications
ISO 8601 - The international standard for date/time strings, always in UTC
Local date/time - Your device's timezone for easy reading
Tips
- Paste any timestamp and all formats update automatically
- Click the copy button to copy any format to clipboard
- Works offline after first visit
Unix Timestamp Converter