Time
Timestamp to Date Converter
Convert Unix timestamps (seconds/millis) to human-readable dates and local times.
Outputs include your local timezone and ISO-8601 format.
About Unix Timestamp Converter
The Unix Timestamp Converter translates the raw epoch time into a human-readable date. It supports both seconds and milliseconds formats, handling the conversion between machine time (integer) and standard ISO 8601 date strings.
Debug time-sensitive issues efficiently. Logs and databases often store time as a plain integer unix time, which is unreadable to humans. This date converter allows developers to quickly verify exactly when an event occurred in their local timezone or UTC.
Paste a numeric timestamp to see the formatted date relative to your browser's local time. Conversely, you can use the date picker to select a specific time and get the corresponding Unix epoch value.
Under the Hood
Timestamps are processed using `date-fns` for consistent locale formatting. The tool applies heuristic detection to determine if an input is in seconds or milliseconds based on magnitude (e.g., values near 10^12 are treated as ms). Timezone offsets are calculated against the browser's local implementation (`Intl.DateTimeFormat`) to show accurate local versus UTC times without server-side skew.