float secon = 0.0;
float minut = 0.0;
float heure = 0.0;

void setup(){
  size(360, 360);
  frameRate(1);
  smooth();
}

void draw(){
  fill(0); noStroke(); rect(0, 20, 360, 340);
  secon = second();
  minut = minute();
  heure = hour();
  
  background((secon*3)+15, (minut*3)+15, (heure*20)+15);
 
  secon += 1;
}