Unix timestamp converter
Convert Unix seconds or milliseconds to UTC, or ISO UTC dates to Unix time.
01 / Your input
02 / Your result
Your result will appear here.
How to use this tool
- Enter your own values, or select Load example to restore the demonstration inputs.
- Review Operation before selecting Run tool.
- Inspect the result, then copy it or download the generated file. Changing inputs clears the previous result.
Processing happens in this browser. Inputs are not uploaded or saved by the tool. Reset clears the result and restores the default settings.
Example and expected result
0 seconds is 1970-01-01T00:00:00.000Z.
Limits and interpretation
Date input must include an explicit Z or UTC offset. Leap seconds are not represented.