// TOOLS

Security Tools

🕐 Timestamp Converter

Unix epoch ↔ date, with unit auto-detection (seconds, ms, µs, ns), UTC and local time, relative time, day of year and ISO week. Perfect for reading timestamps from logs, JWTs or APIs.

Frequently asked questions

Does it detect whether the number is in seconds or milliseconds?
Yes, by magnitude: around 10 digits is seconds and around 13 is milliseconds; it also recognizes microseconds and nanoseconds. You can force the unit if you prefer.
In which timezone does it show the date?
In UTC and in your browser timezone at the same time, so you can compare without confusion.
Does it also convert from date to epoch?
Yes. Pick a date and time and it gives you the epoch in seconds and milliseconds.