Convert Unix timestamps (seconds or milliseconds) to human-readable dates and vice versa. See the current timestamp live. Supports multiple date format outputs.
A timestamp converter translates between Unix timestamps and human-readable date formats. Unix timestamps represent dates as the number of seconds or milliseconds since January 1, 1970 (the Unix epoch), and are widely used in programming, databases, and APIs. Our browser-based tool converts timestamps to readable dates showing local time, UTC, and ISO 8601 formats, and also converts dates back to timestamps. It displays the current live timestamp for reference. All conversions happen locally in your browser, so your data stays private.
A Unix timestamp is the number of seconds (or milliseconds) that have elapsed since January 1, 1970, 00:00:00 UTC (the Unix epoch). It's widely used in programming for storing and comparing dates.
Unix timestamps in seconds are 10 digits (e.g., 1700000000). Milliseconds are 13 digits (e.g., 1700000000000). JavaScript's Date.now() returns milliseconds. Most APIs use seconds.
Yes. The tool displays both your local time zone and UTC. Unix timestamps themselves are always UTC-based.
32-bit systems store timestamps as a signed 32-bit integer, which overflows on January 19, 2038. Most modern systems use 64-bit timestamps, which won't overflow for billions of years.