data.day
← Tools

Unix Timestamp Converter

Convert Unix epoch (seconds/milliseconds) to readable dates and back — locally.

beta browser

Convert Unix epoch timestamps (seconds or milliseconds) to readable UTC and local time, and convert typed dates back to epoch seconds/milliseconds—useful for debugging database records, log lines, and metrics windows. Runs fully in the browser with no tracking, no uploads, and no storage.

Privacy: inputs stay on your device.

Run it

Runs locally in the browser. No tracking. No data stored.