Unix Timestamp to Date Converter
Convert local date and time to Unix seconds or milliseconds and decode timestamps back to readable time.
Result
This page opens the converter focused on the direction most people need when they already have a raw number from a log file, database column, or API response: turning a Unix timestamp back into a readable date.
Paste the timestamp into the value field and the calculator decodes it immediately, showing the date and time in the time zone you select, along with an exact ISO 8601 representation for precise reference.
The decoder automatically distinguishes second-based timestamps from millisecond-based ones by magnitude, which avoids the most common conversion mistake — reading a millisecond value as if it were seconds and landing on a date decades off.