Code:
CLEAR
LED        VAR GPIO.0
Delay      VAR WORD

CMCON = 7
ANSEL = 0

Include "Elapsed.bas"
Gosub ResetTime                ' Reset Time to  0d-00:00:00.00
Gosub StartTimer               ' Start the Elapsed Timer

HIGH LED                          ; Start with LED on
SecondsChanged = 0
Delay = 90

Loop:
  if Delay > 0 then
    if SecondsChanged then  
       SecondsChanged = 0
       Delay = Delay - 1
       if Delay = 0 then LOW LED  ; Turn off LED
    endif
  endif
Goto Loop