About this tool
Convert between Unix timestamps and dates in both directions, auto-detecting seconds vs milliseconds. Essential for backend dev, log analysis and API debugging.
How to use
- Enter a timestamp (e.g. 1700000000) and click "Timestamp โ Date"
- Or enter a date and click "Date โ Timestamp"
- View the result with second and millisecond precision
Example
Timestamp 1700000000 corresponds to 2023-11-14 22:13:20 (UTC+8).
FAQ
How to distinguish seconds vs milliseconds?
10 digits = seconds, 13 digits = milliseconds. This tool auto-detects: values below 1e12 are treated as seconds.
What is the epoch?
Unix timestamps count from 1970-01-01 00:00:00 UTC.