Timestamp Converter | UNIX Timestamp Date Converter
Convert between timestamps and date/time formats online
Free online timestamp converter: UNIX ↔ datetime with second/millisecond toggle & multiple output formats. Perfect for log analysis, API debugging & timezone workflows.
Instructions
Input methods
Enter a Unix timestamp or type/paste a local datetime. The converter updates both directions automatically.
Unit switch
Choose seconds or milliseconds to control how timestamp input is parsed.
Output formats
Get ISO, UTC, local time, readable format, and relative time; reference rows like “one day ago” use your selected time.
Tips
- Use Current Time for quick now-based conversion
- Copy each row independently for logs and API payloads
- After switching units, double-check timestamp length expectation