Unix Timestamp Converter
Convert between a Unix timestamp and a human-readable date instantly, with both local and UTC time shown.
Enter a timestamp above to convert it.
Pick a date and time above to convert it.
How to use this tool
A Unix timestamp represents a moment in time as the number of seconds (or milliseconds) elapsed since January 1, 1970 UTC — compact, unambiguous, and easy for computers to compare or sort, but not something a person can read at a glance. This tool converts in both directions: paste a timestamp to see the date it represents, or pick a date and time to get its timestamp — useful when debugging logs, APIs, or database records that store time this way.
For example, the timestamp 1700000000 (seconds) converts to Tue, 14 Nov 2023 22:13:20 GMT in UTC.
The current timestamp updates live at the top of the tool. In the Timestamp → Date panel, choose whether your timestamp is in seconds or milliseconds and type it in; in the Date → Timestamp panel, pick a date and time. Both panels update automatically and show the result in local time, UTC, and ISO 8601 format.
FAQ
Is this timestamp converter free to use?
Yes, this tool is completely free to use with no limits on how often you can use it.
Does my data get uploaded anywhere?
No. Every conversion happens directly in your browser. Nothing is sent to a server.
What's the difference between the seconds and milliseconds options?
A Unix timestamp counts elapsed time since January 1, 1970 UTC (the "epoch"). Unix and most server-side systems traditionally count in whole seconds, while JavaScript's own Date object — and many web APIs and logs — count in milliseconds. Pick whichever unit matches where your timestamp came from; picking the wrong one will land you off by a factor of 1000, usually showing a date near 1970 or an error.
What time zone are the results shown in?
Both. Every conversion shows the date in your browser's local time zone and in UTC side by side, since a raw Unix timestamp itself has no time zone — it's just a count of seconds or milliseconds. Converting a local date and time to a timestamp also assumes the date you entered is in your browser's local time zone.
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