wake up form stand-by or shutdown mode

[D4v1d5]

i was wondering if this is possible
if the user clicks on the stand-by button or shutdown and before the computer goes on standby or shutdown a vb program reads the wake-up clock in the bios and change it into the current time and date and add 2 hours and write it back into the bios so that the computer will wake up afther 2 hours from the stand-by mode

i'm not interesting in other things with the bios just want to read and change the wake up setting