UNIX Date/Time Calculator

Here's some Javascript forms to convert UNIX Dates (both decimal and hexadecimal) to "human" time (both local time and UTC/GMT). UNIX dates are measured in seconds since midnight 1/1/1970 UTC (GMT).

These forms require a JavaScript to be enabled in your web browser to work. To view the JavaScript code, select "View-->HTML Source" in your web browser. Use at your own risk (I'm not responsible for any errors). Enjoy!

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UNIX Date (Decimal)
Input: (DECIMAL) seconds since 1/1/1970 ("UNIX Epoch")
= (HEXADECIMAL) seconds since 1/1/1970 ("UNIX Epoch")
= local time (GMT - hours )
= UTC (GMT)

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UNIX Date (Hexadecimal)
Input: (HEXADECIMAL) seconds since 1/1/1970 ("UNIX Epoch")
= (DECIMAL) seconds since 1/1/1970 ("UNIX Epoch")
= local time
= (GMT - hours) UTC (GMT)

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This page requires a JavaScript-enabled browser to function. If you have a 32-bit web browser, only dates in the range 31 December 1969 to 18 January 2038 are allowed—the fix is to use a 64-bit web browser. To view the source code, right click and select "view source" or type control-u.

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Last updated 25 February 2018.

If you have questions or comments, please send a message to Dan Anderson.

http://dan.drydog.com/datecalculator.html