Unix Timestamp Converter
Convert Unix seconds/milliseconds to ISO and local time — or parse a date string.
Enter a Unix timestamp or an ISO/date string. Processing stays local.
Numeric inputs with 13+ digits are treated as milliseconds.
What is a Unix timestamp?
Seconds (or ms) since 1970-01-01 UTC, widely used in APIs and logs.
How to convert Unix timestamps
- 1
Enter a value
Paste seconds, milliseconds, or an ISO/date string the browser can parse.
- 2
Convert
See Unix seconds, UTC ISO, and your local timezone representation.
- 3
Copy results
Copy the fields you need into logs or code.
Unix Timestamp Converter FAQ
Seconds or milliseconds?
Pure digits with length ≥13 are treated as milliseconds; shorter digit strings as seconds.
Timezones?
ISO output is UTC; local string uses your browser timezone.
Uploaded?
No.
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