⏱️ Unix Timestamp Converter

A Unix timestamp (epoch time) is the number of seconds since January 1, 1970 00:00:00 UTC. It's the universal time format used by operating systems, databases, and APIs worldwide. For example, 1708070400 represents February 16, 2024.

Seconds timestamps are 10 digits (e.g. 1708070400), milliseconds are 13 digits (e.g. 1708070400000). JavaScript's Date.now() returns milliseconds. Most APIs use seconds. This tool auto-detects both formats. For other encoding tasks, try our Base64 Encoder/Decoder.

Yes. Everything runs in your browser — no data leaves your device. You can verify by opening DevTools → Network tab. Zero requests are made with your data. This is the same privacy-first approach used by DonFlow.

32-bit systems store timestamps as signed integers that overflow on January 19, 2038 at 03:14:07 UTC. This tool uses JavaScript's 64-bit floating-point numbers, handling dates well beyond 2038. Modern 64-bit systems won't be affected either.

In JavaScript: Math.floor(Date.now()/1000). In Python: import time; time.time(). In Bash: date +%s. In SQL: UNIX_TIMESTAMP(). Use our JSON Formatter to inspect API responses containing timestamps.

Yes! Click the 🔗 Share button to generate a URL with your timestamp encoded. Opening the link will auto-convert it — great for scheduling with cron, debugging, or sharing with teammates.