Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates and back. Essential for debugging API responses and database records.
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Help & answers
Frequently Asked Questions
What is a Unix timestamp?
A Unix timestamp is the number of seconds since January 1, 1970 UTC. It is the standard way computers store and exchange time values without timezone ambiguity.
Can I convert a timestamp in both directions?
Yes. Enter a Unix timestamp to get a human-readable date, or enter a date and time to get the equivalent Unix timestamp.
Why do I sometimes see 13-digit timestamps?
A 13-digit timestamp is in milliseconds rather than seconds. JavaScript and many modern APIs use milliseconds. Divide by 1000 to convert to seconds if a system expects the shorter 10-digit format.
Does the converter use my local timezone?
You can choose between UTC and local time display. Unix timestamps are always stored in UTC — the timezone only affects how the human-readable output is shown.
Important disclaimer: Alexonic Tools is completely free to use. There is no charge, and we do not save tool inputs or generated results. We value customer privacy and keep building and fixing each day. Always verify important financial, payroll, legal, tax, business, or production-code results before relying on them. If you see an issue, need a tool, or require an update, send feedback to the developer.