Seconds, milliseconds, microseconds, and nanoseconds are told apart by size, or you can choose the unit yourself when it is ambiguous.
Date & Time
Unix Timestamp Converter
Turn a Unix timestamp into a readable date in any time zone, or pick a date and get its timestamp. It detects seconds, milliseconds, and more automatically.
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What it handles
Epoch time without the guesswork.
A Unix timestamp counts the seconds since 1 January 1970 UTC. It is how logs, databases, and APIs record time, and it is unreadable until converted.
See the same moment in your own zone or in UTC and major cities, with daylight saving applied for that exact date.
Pick a date and time to get the timestamp in seconds and milliseconds, read in whichever zone you choose.
Frequently asked questions
How do I know if a timestamp is in seconds or milliseconds?
Count the digits. A timestamp for a date in the last few decades has 10 digits in seconds and 13 in milliseconds. The converter uses that to guess, and you can override it.
Why is my date off by some hours?
A timestamp is a single instant, but the clock time you see depends on the time zone. Check the zone selector: UTC and your local time differ by your offset.
What is the year 2038 problem?
Systems that store seconds in a signed 32-bit number run out on 19 January 2038. This tool uses 64-bit arithmetic, so it converts dates far beyond that.
Does it handle daylight saving time?
Yes. When converting a date to a timestamp, the zone's offset for that specific date is used, so a time in July and a time in January are treated correctly.