Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and back. Auto-detects seconds or milliseconds, with local, UTC, ISO, and relative time.
About the Unix Timestamp Converter
Convert timestamps into local, UTC and ISO dates or convert a browser-local date and time into seconds and milliseconds. Automatic detection treats absolute values of at least one trillion as milliseconds and smaller values as seconds. Early millisecond timestamps are ambiguous under this heuristic; confirm the detected unit before using the output.
Features
- Timestamp and date conversion
- Displayed unit detection
- Local and UTC output
- Current epoch time
How to use this tool
The Unix Timestamp Converter works right in your browser — no signup, no installation. Follow these steps:
- Paste a Unix timestamp to see the date in local, UTC, and ISO.
- Or pick a date and time to get the timestamp in seconds and milliseconds.
- Use the live current time or the "use now" button for the present moment.
- Click Copy to grab the result.
Frequently asked questions
How does this tool work?
Convert timestamps into local, UTC and ISO dates or convert a browser-local date and time into seconds and milliseconds. Automatic detection treats absolute values of at least one trillion as milliseconds and smaller values as seconds. Early millisecond timestamps are ambiguous under this heuristic; confirm the detected unit before using the output.
Using the results
The Unix Timestamp Converter is the kind of utility you reach for mid-task and want to just work. It runs locally in your browser, returns exact results instantly, and never transmits the values you paste — safe for tokens, configs, and anything sensitive.