What Is a Unix Timestamp?
A Unix timestamp (or "epoch time") counts the number of seconds that have elapsed since 00:00:00 UTC on 1 January 1970, ignoring leap seconds. It's widely used in programming and databases as a compact, unambiguous way to store a point in time.
Example Calculation
The Unix timestamp 1765123200 corresponds to 7 December 2025, 16:00:00 UTC.
Formula / Calculation Method
Timestamp (seconds) = (Date − 1 January 1970 00:00:00 UTC) ÷ 1 second.
How to Use This Tool
- To convert a timestamp to a date, paste it in and choose seconds or milliseconds.
- To convert a date to a timestamp, pick a date and optional time.
- Use the live current timestamp panel for the current epoch time.
Common Use Cases
Debugging APIs and log files that use epoch time
Database timestamp troubleshooting
Scheduling and cron expression testing
Working with JWT expiration times