What is a Unix timestamp?

A Unix timestamp is the number of seconds that have elapsed since January 1, 1970 00:00:00 UTC (the Unix epoch). It's widely used in programming and databases to represent dates and times in a standardized numeric format.

Should I use seconds or milliseconds?

It depends on your source. Traditional Unix timestamps use seconds (10 digits, like 1735689600). JavaScript and some systems use milliseconds (13 digits, like 1735689600000). The calculator handles both.

What is the year 2038 problem?

The year 2038 problem affects 32-bit systems that can't represent timestamps after January 19, 2038 03:14:07 UTC. Modern 64-bit systems don't have this limitation and can represent dates far into the future.

Unix Timestamp Converter - Unix Time to Date and Vice Versa

How to Use the Unix Timestamp Converter

This free unix timestamp converter helps you quickly calculate date & time (utc). Simply enter your values in the fields above and click "Calculate" to see your results instantly.

Understanding Your Results

After entering your information, the calculator will display your results including date & time (utc), date & time (local), readable date, iso 8601 format. Each result is calculated using standard formulas used by financial professionals and experts in the field.

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