C / C++ / MFC

double difftime( 
   time_t timer1,
   time_t timer0 
);

(12/24) + (23/1440) + (32/86400) = 
0.5     + 0.015972  + 0.0003703  = 0.5163425926 (a little more than half a day)

s3 = s1 + s2
if s3 >= 60
  s3 = 0
  m1 = m1 + 1
end
m3 = m1 + m2
if m3 >= 60
  m3 = 0
  h1 = h1 + 1
end
h3 = h1 + h2
if h3 >= 24
  h3 = 0
  d3 = 1
end
 
print d3+" days,"+h3+" hours,"+m3+" minutes,"+s3+" seconds"

enum enCOLOR
{
  enRED,
  enGREEN,
  enBLUE,
  enPINK,
}

main()
{
   enum enCOLOR mycolor;
   mycolor = enGREEN;
   ....
   switch(mycolor)
   {
      case enRED:
         ....
      case enGREEN:
         ...
   }
}