Unix Timestamp
Convert Unix timestamps to human-readable dates and vice versa.
ConverterUnix Timestamp → Date
Date → Unix Timestamp
How to use this tool
Convert between Unix timestamps and readable dates in both directions. Unix time counts seconds since 1 January 1970 UTC, which is how most databases, log files, and APIs store a moment in time.
- STEP 1Paste a timestamp to see the date it represents, in both UTC and your local zone.
- STEP 2Or enter a date and time to get the timestamp back.
- STEP 3Check whether your value is in seconds or milliseconds before you read the result.
A Unix timestamp has no time zone of its own — it is always counted from UTC. The local time you see is that same instant rendered with your device's offset.
All inputs and calculations stay in your browser; TimeKit does not send your entries to a server.
Examples
Frequently asked questions
How do I tell seconds from milliseconds?
A present-day timestamp in seconds has 10 digits; in milliseconds it has 13. A 13-digit value read as seconds lands tens of thousands of years in the future.
Does Unix time have a time zone?
No. It is defined from UTC, so the same timestamp describes the same instant everywhere. Only its display changes.
What is the year 2038 problem?
A signed 32-bit timestamp overflows on 19 January 2038. Modern systems use 64-bit values, which do not overflow for billions of years.