void setup() {
  size(600, 800);
  cl=0;
}
 
 float s, prevS;
 float m;
 float h1, h2;
 int cl;
 
 
void draw(){ 
  PImage a = loadImage("time.jpg"); // Load the image into the program
  image(a, 0, 0); // Displays the image from point (0,0)
  image(a, width, 0, a.width, a.height);
  int myH=hour();
  int myM=minute();
  int myS=second();
  s=(myS*10)+100;
  m=(myM*5)+150;
  h1=(myH*20)+450;
  h2=((abs(myH-12))*20)+450;
  
  //draw hours
  stroke(0);
 
  if((myH <= 12)&&(myH>0)){
    for(int i=450+20; i<=h1; i=i+20){
       fill(250,0,0);
       ellipse(150,i, 8,15);
    }
  }
  else{
     for(int i=450+20; i<=(12*20)+450; i+=20){
       fill(250,0,0);
       ellipse(150,i, 8,15);
    }
    
    for(int i=450+20; i<=h2; i+=20){
       fill(250,0,0);
       ellipse(250,i, 8,15);
    }
    
  }
  
  //draw mins
  for(int i=150+5; i<=m; i=i+5){
    stroke(255);
    line(i, 0, i, 800);
  }
  
  //draw seconds
  if(!(prevS==myS)&&(myS==0)){
   if(cl==0){
        cl=250;
    }else{
        cl=0;
    }
  }
  
  for(int i=100+10; i<=s; i=i+10){
    stroke(cl);
    line(0, i, 600,i);
  }
 
  prevS=myS;
}