The current time can be read with the second(), minute(), and hour() functions. In this example, sin() and cos() values are used to set the position of the hands.

```def setup():
size(640, 360)
stroke(255)

global clockDiameter, cx, cy

radius = min(width, height) / 2

cx = width / 2
cy = height / 2

def draw():
background(0)

# Draw the clock background
fill(80)
noStroke()
ellipse(cx, cy, clockDiameter, clockDiameter)

# Angles for sin() and cos() start at 3 o'clock;
# subtract HALF_PI to make them start at the top
s = map(second(), 0, 60, 0, TWO_PI) - HALF_PI
m = map(minute() + norm(second(), 0, 60), 0, 60, 0, TWO_PI) - HALF_PI
h = map(hour() + norm(minute(), 0, 60), 0, 24, 0, TWO_PI * 2) - HALF_PI

# Draw the hands of the clock
stroke(255)
strokeWeight(1)
line(cx, cy, cx + cos(s) * secondsRadius, cy + sin(s) * secondsRadius)
strokeWeight(2)
line(cx, cy, cx + cos(m) * minutesRadius, cy + sin(m) * minutesRadius)
strokeWeight(4)
line(cx, cy, cx + cos(h) * hoursRadius, cy + sin(h) * hoursRadius)

# Draw the minute ticks
strokeWeight(2)
beginShape(POINTS)
for a in range(0, 360, 6):