Time guide

Unix Timestamp to Date

Convert Unix seconds or milliseconds into readable local and UTC date strings.

How to do it

Paste a 10-digit Unix timestamp for seconds or a 13-digit timestamp for milliseconds.
Run the converter to see local time, UTC time, seconds and milliseconds.
Copy the format you need for logs, dashboards or docs.

Convert Unix timestamps to dates and dates back to Unix time in seconds or milliseconds.

Convert a readable date into Unix seconds and milliseconds for APIs, databases and logs.

View the current Unix timestamp in seconds and milliseconds with UTC and local time.

Repair common JSON syntax errors such as trailing commas, comments, single quotes, missing quotes and unmatched brackets.

Clean up JSON returned by ChatGPT or other AI tools when the response includes markdown fences, comments or invalid syntax.

AI guideGuide

Remove trailing commas from JSON objects and arrays so strict JSON parsers can read the data.

Decode Base64 text back into readable Unicode text without uploading it to a server.

Classic Unix time is seconds, while many JavaScript APIs use milliseconds.

The timestamp itself is timezone-neutral. Displayed dates can be local time or UTC.

Yes. Negative values represent dates before January 1, 1970 UTC.