Unix Timestamp Converter
Convert between Unix timestamps (epoch time) and human-readable dates in both directions. Handles seconds and milliseconds, in your local time and UTC.
Current Unix time:
Timestamp → Date
Date → Timestamp
What is a Unix timestamp?
A Unix timestamp (also called epoch time) is the number of seconds that have elapsed since 00:00:00 UTC on 1 January 1970, not counting leap seconds. It's a compact, timezone-free way for computers to store a moment in time. Many systems use milliseconds instead (multiply by 1000). This tool auto-detects which you've entered.
Recommended
Frequently asked questions
Does this support milliseconds?
Yes. If your number has 13 digits it's treated as milliseconds; 10 digits is treated as seconds. The converter detects this automatically.
Is the conversion done privately?
Yes — it runs entirely in your browser using the JavaScript Date object. Nothing is uploaded.