What is the difference between seconds and milliseconds timestamp?

Second-level timestamp is a 10-digit number, commonly used in Linux systems; Millisecond-level timestamp is a 13-digit number, commonly used in JavaScript and Java systems. 1 second = 1000 milliseconds.

Online Unix Timestamp Converter - Seconds & Milliseconds

Unix Timestamp Converter

Convert current time to timestamp or timestamp to readable date.

Input Content

To Timestamp

To Date Time

Result

What is Unix Timestamp?

A Unix timestamp is the number of seconds that have elapsed since 00:00:00 Coordinated Universal Time (UTC), Thursday, 1 January 1970. It is widely used in computer systems and log files to record the time of events.

Why use this tool?

Debugging Code: When handling time data returned by APIs, it is often necessary to verify if the timestamp is correct.
Database Queries: Many databases (like MongoDB, MySQL) store time using the timestamp format.
Cross-Timezone Collaboration: Timestamps are absolute and unaffected by time zones, making them ideal for global team collaboration.

Common Use Cases

Seconds vs. Milliseconds: Some systems (like Linux) use 10-digit second-level timestamps, while others (like JavaScript, Java) use 13-digit millisecond-level timestamps. This tool supports automatic recognition and conversion.
Current Time: Quickly get the current Unix timestamp for testing purposes.