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55

answers:

2
+1  Q: 

seemingly complex date time calculations...

I have this function that should convert them from Ole to UTC8601 standard, but I don't understand how the integer representations of time seem to work.

Can anyone give me some explanation?

the function is called: RipOf_AfxTmFromOleDate

containing statements as: nDaysAbsolute %= 146097L; Where does the value come from and how is it calculated?

where nDaysAbsolute is a long type.

This app gets values from an Oracle database and sends them to another application.

+2  A: 

In 400 years, there are 97 leap years.

146097 = 365 * 400 + 97.

KennyTM  2010-06-02 14:24:24
+2  A: 

Take a look at Julian Day calculations.

Nikolai N Fetissov  2010-06-02 14:26:25

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