function zegar (h,m,s)
alfa = 0:pi/180:2*pi;
r=10;
x= r*cos(alfa);
y= r*sin(alfa);
hold on
plot(x,y);
alfa1=0:pi/6:11*pi/6;
r1=8;
r2 = 9;
x1 = r1*cos(alfa1);
y1 = r1*sin(alfa1);
x2 = r2*cos(alfa1);
y2 = r2*sin(alfa1);
for i=1:12
plot([x1(i),x2(i)],[y1(i),y2(i)],'g')
end
alfah=pi/2-h*pi/6-m*pi/30/12;
r3=5;
yh= r3*sin(alfah);
xh= r3 *cos(alfah);
plot([0,xh],[0,yh],'r')

alfam = pi/2-m*pi/30;
r4 =7;
ym= r4 *sin(alfam);
xm= r4 * cos(alfam);
plot([0,xm],[0,ym],'b')

alfas = pi/2-s*pi/30;
r5 =9;
ys= r5 *sin(alfas);
xs= r5 * cos(alfas);
plot([0,xs],[0,ys],'y')
hold off