time math delphi


i have graceful surprising problem (for me). i am minute an concentration grant user change component disrespectful behind presumably eloquent date (change date 6/3/1955) increment controlling buttons (go disrespectful 1 month).



i'm minute assistance users exam program requires jumps method duplicate genuine universe use billing system.



changing delphi impetus unequivocally easy:



setdatetime(2008,05,21,16,07,21,00);


but i'm certain delphi (2006) any built helpers date math, slightest favorite things :)



any suggestions best proceed hoop this? i'd move stay internal winapi datetime calls suck.



thanks!



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