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Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and back, in any timezone, instantly.
🔒 Runs entirely in your browser — no data is ever sent anywhereUnix timestamp → Human-readable date
Date / time → Unix timestamp
Frequently asked questions
What is a Unix timestamp?
A Unix timestamp (or 'epoch time') is the number of seconds that have elapsed since January 1, 1970 UTC. It's a compact, timezone-independent way to represent a point in time, widely used in databases, logs, and APIs.
Does this tool handle milliseconds or just seconds?
It auto-detects both — a 10-digit number is treated as seconds, a 13-digit number as milliseconds, matching how most languages and databases represent Unix time.
How do I convert to a specific timezone?
The converted date is shown in your browser's local timezone by default, plus UTC for reference — useful for comparing a timestamp across regions without doing manual offset math.