Question 1

How do I convert a Unix timestamp to a date?

Accepted Answer

Enter your timestamp in the 'Timestamp → Date' panel. The tool auto-detects whether it's in seconds (10 digits) or milliseconds (13 digits) and shows the corresponding UTC date and your local time. Click 'Use Current Time' to get today's timestamp.

Question 2

How do I convert a date to a Unix timestamp?

Accepted Answer

Scroll to the 'Date → Timestamp' panel. Enter year, month, day, hours, minutes, and seconds, and the tool shows both seconds and millisecond timestamps. Use 'Use Current Time' to auto-fill with the present moment.

Question 3

What's the difference between seconds and milliseconds timestamps?

Accepted Answer

A timestamp in seconds is 10 digits (e.g., 1710800000). In milliseconds it's 13 digits (e.g., 1710800000000). JavaScript uses milliseconds; most APIs and databases use seconds. This converter auto-detects your input format so you don't need to worry about it.

Unix Timestamp Converter

Timestamp → Date

Date → Timestamp

Unix Timestamp Converter