Developer Tools
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates — and back again — entirely in your browser. A live ticking clock shows the current epoch value, and both local and UTC formats are displayed so you can compare them at a glance.
Your input is processed locally in your browser. It is not uploaded to Dueneo.
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How to use
- 1
Read the current timestamp
A live ticking clock at the top shows the current Unix epoch value in seconds, plus the equivalent local and UTC times.
- 2
Convert timestamp → date
Type a Unix timestamp (in seconds or milliseconds) and the local, UTC, ISO 8601 and relative formats appear instantly.
- 3
Convert date → timestamp
Pick a local date and time. The corresponding Unix value in both seconds and milliseconds is shown with copy buttons.
- 4
Copy whatever you need
Every output value has a Copy button — use it to grab the seconds, milliseconds, or formatted string for your code or notes.
Common use cases
- Decode a Unix timestamp from a log file or API response into a readable date.
- Generate a timestamp for a specific scheduled date in your local timezone.
- Verify whether a stored value is in seconds or milliseconds before using it.
- Cross-check UTC vs local time when working with multi-region systems.
Limitations
- Dates outside the range ±100,000,000 days from 1 January 1970 cannot be represented by JavaScript's Date object.
- Conversions use your browser's local timezone; manually entering an offset is not supported.
- Sub-second precision is not shown — milliseconds are preserved in the value but not displayed in the formatted string.