Timestamp Converter

Convert 10/13-digit Unix timestamps to a readable local date & time (plus ISO 8601). Auto-detects seconds or milliseconds.

Timestamp Converter turns 10- or 13-digit Unix timestamps into a clear, human-readable date and time. It shows the result both in your local format and in ISO 8601 (YYYY-MM-DD HH:mm:ss), auto-detects whether the value is in seconds or milliseconds, and shows the live current time with both 10- and 13-digit timestamps. Translated into 10 languages. No accounts, no tracking, no network access — everything runs locally in your browser. Switch to the Date → Timestamp tab to pick a local date and time and instantly get both the 10- and 13-digit Unix timestamps.