Epoch ↔ human time, any timezone. Everything runs in your browser.
Not a number. Paste a Unix timestamp like 1756476000.
Everything on this page uses the browser's built-in Intl API and the IANA
timezone database it ships with — the same data your OS uses. Paste an epoch in seconds,
milliseconds, microseconds, or nanoseconds and the unit is detected from its length. The
timezone converter answers the everyday question directly: "9:00 in Istanbul — what is that
in UTC, in New York, in Tokyo?"
Nothing is stored and nothing is transmitted. The page works offline once loaded.
The number of seconds elapsed since 1970-01-01 00:00:00 UTC (the Unix epoch), ignoring leap seconds. Variants count milliseconds, microseconds, or nanoseconds — this page detects which one you pasted from its length.
By magnitude. A seconds value stays under 12 digits until the year 5138, milliseconds use 12–14 digits, microseconds 15–17, nanoseconds 18+. Paste any of them and the badge shows what was assumed.
Ambiguous wall-clock times (the repeated hour in autumn) resolve to the earlier offset; nonexistent times (the skipped hour in spring) shift forward. Both are shown against the IANA timezone database your browser ships.
No. Conversion happens in your browser with the built-in Intl API. The page works offline once loaded.