CLOCK

#include<stdio.h>
#include<graphics.h>
#include<dos.h>
void main(){
 struct time t;
 struct arccoordstype sec_arc, min_arc, hr_arc;
 int i;
 int gd = DETECT,gm;
 initgraph(&gd,&gm,"c://TurboC3//BGI");
 setcolor(RED); //Outer circle circle(320,240,100);
 circle(320,240,99); //Inner circle circle(320,240,80);
 circle(320,240,81);
 setcolor(WHITE); //mark four points
 line(320,160,320,165);//top
 line(320,320,320,325);//bottom
 line(400,240,395,240);//left
 line(240,240,245,240);//right
 while(!kbhit()) {
 printf("Time is : %2d:%2d:%3d\r",t.ti_hour%12, t.ti_min, t.ti_sec);
 setcolor(0);
 line(320,240, sec_arc.xend, sec_arc.yend);
 line(320,240, min_arc.xend, min_arc.yend);
 line(320,240, hr_arc.xend, hr_arc.yend);  //Store time into struct t
 gettime(&t);  //hour
 setcolor(0);
 arc(320,240,270,90-(t.ti_hour*6*5),55);
 setcolor(YELLOW);
 getarccoords(&hr_arc);
 line(320,240, hr_arc.xend, hr_arc.yend);  //minute
 setcolor(0);
 arc(320,240,270,90-t.ti_min*6,65);
 setcolor(CYAN);
 getarccoords(&min_arc);
 line(320,240, min_arc.xend min_arc.yend);  //center circle
 setcolor(WHITE);
 pieslice(320,240,0,360,5);  //second
 setcolor(0);
 arc(320,240,270,90-t.ti_sec*6,75);
 setcolor(RED);
 getarccoords(&sec_arc);
 line(320,240, sec_arc.xend, sec_arc.yend);
 delay(250);
 }
 getch();
 }

OUTPUT: