In here:

Code:
Main:
  IF SecondsChanged = 1 THEN  
     SecondsChanged = 0
     LCDOUT $FE,2, DEC Days,"d-",DEC2 Hours,":",DEC2 Minutes,":",DEC2 Seconds
  ENDIF
GOTO Main
You check the status of the timer flags to determine if things have changed, then reset them.

Robert