Unix Timestamp Converter
Convert Unix (epoch) timestamps to human-readable dates and back, in seconds or milliseconds, with UTC and local time. Runs entirely in your browser.
🔒 Runs 100% in your browser — nothing is uploaded
Timestamp → Date
Date → Timestamp
About the Unix timestamp converter
Unix timestamps count the seconds since the "epoch" — midnight UTC on January 1, 1970 — and are everywhere in programming, logs, APIs and databases. Paste a timestamp to see the exact date in UTC and your local time, or pick a date to get its timestamp in seconds and milliseconds. It all runs in your browser, so it's fast and private.
Frequently asked questions
What is a Unix timestamp?
A Unix (or epoch) timestamp is the number of seconds that have elapsed since January 1, 1970 at 00:00 UTC. It is a simple, timezone-independent way for computers to store a point in time.
Seconds or milliseconds?
Both are common. 10-digit values are usually seconds; 13-digit values are milliseconds. This tool auto-detects, and you can switch manually.
Is my data uploaded?
No. All conversion happens in your browser.