(I apologize for writing in English, but my Spanish isn't good enough to write in)
There is a time library in the CVI utility library that supports the operation you're trying to perform. Here's some sample code that adds 100 years to the current date/time:
CVIAbsoluteTimenow, then;
CVITimeIntervalhundredYears;
doublemillisecond;
unsigned inweekday, second, minute, hour, day, month, year;
CVITimeIntervalFromTimeUnit (CVITimeUnitDays, 365.25 * 100, &hundredYears);
GetCurrentCVIAbsoluteTime (&now);
AddToCVIAbsoluteTime (now, hundredYears, &then);
CVIAbsoluteTimeToLocalCalendar (then, &year, &month, &day, &hour, &minute, &second, &millisecond, &weekday);
Note that the maximum unit that you can pass to the CVITimeIntervalFromTimeUnit function is "days". This is because the exact length of a month, or of a year, isn't well defined (because years can have 365 or 366 days). I'm using 365.25 as a rough approximation, but you might have to do something more precise than that, depending on how leap years affect your calculation.
Luis
