Unix Timestamp Converter
Convert Unix timestamps to readable dates and back again.
Seconds and milliseconds detection
Local and UTC display
Current timestamp quick actions
Timestamp input
10 digits usually means seconds. 13 digits usually means milliseconds.
Converted date
Show both local and UTC output to reduce confusion.
Enter a timestamp to begin.
Common use cases
- Debugging backend logs quickly
- Preparing timestamp examples for docs
- Checking whether a value is in seconds or milliseconds
FAQ
How do I know if a timestamp is in seconds or milliseconds?
Values with 13 digits are usually milliseconds, while 10-digit values are usually Unix seconds.
Does the tool support future dates?
Yes. Any valid JavaScript date value that can be derived from the timestamp will render.
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