4-3B

function setup() {

  createCanvas(windowWidth, windowHeight);

  background(100);

}

var ang = 0

function draw() {

  background(0)

  // var ang = map(mouseX,0,width,0,PI*2,true)

  var s =second(),

      m =minute(),

      h =hour();

  var angleS = map(s,0,60,0,PI*2),

      angleM = map(m,0,60,0,PI*2),

      angleH = map(h,0,12,0,PI*2);

  ang = s/10

  fill('red')

  arc(width/2, height/2, 200, 200, 0, angleS, PIE)

  fill('yellow')

  arc(width/2, height/2, 100, 100, 0, angleM, PIE)

  fill('white')

  arc(width/2, height/2, 50, 50, 0, angleH, PIE)

}