Timestamp Converter
Unix Timestamp Converter
Convert between Unix timestamps and human-readable dates. Supports both seconds and milliseconds.
Privacy: Processing happens in your browser. Files and text are not uploaded to Anwita Digital servers.
How to use this tool
- Enter a Unix timestamp (seconds or milliseconds since epoch)
- Or select a date/time to convert to timestamp
- Toggle between seconds and milliseconds format
- View instant conversions in both directions
- Copy timestamps for use in code, databases, or APIs
About Timestamp Converter
Unix timestamps represent dates as seconds (or milliseconds) since January 1, 1970 00:00:00 UTC (the Unix epoch). This format is universal in programming, databases, and APIs because it eliminates timezone ambiguity and simplifies date arithmetic.
This converter translates between timestamps and human-readable dates in both directions. It handles both Unix timestamps (seconds) and JavaScript timestamps (milliseconds), which differ by a factor of 1000.
All conversions use browser-native JavaScript Date objects for accuracy. No data is uploaded, perfect for working with sensitive log timestamps, database records, or API responses.
Frequently asked questions
Unix timestamps use seconds since epoch. JavaScript timestamps use milliseconds. If your timestamp is 13 digits, it's likely milliseconds. 10 digits means seconds.
Timestamps are in UTC by default. Your browser displays them in your local timezone. If you need UTC display, note the timezone offset shown in the conversion.
JavaScript timestamps are limited to roughly ±8.64e15 milliseconds from epoch (September 1275760 BCE to September 275760 CE), covering any practical date range.