Arduino Clock

Here is the code I wrote for a basic arduino 7-segment clock display.

unsigned char tick = 0;
unsigned char tenhours = 1; //Set Initial Time
unsigned char hours = 5;
unsigned char tenminutes = 0;
unsigned char minutes = 6;
unsigned char tenseconds =5;
unsigned char seconds = 8;
unsigned char alarmtenhours = 1; //Set Alarm
unsigned char alarmhours = 5;
unsigned char alarmtenminutes = 0;
unsigned char alarmminutes = 7;
unsigned char alarmtenseconds = 0;
unsigned char alarmseconds = 0;

void setup(){ //Initialize all pins as outputs
pinMode(22,OUTPUT); //LED 1 segment a
pinMode(23,OUTPUT); //LED 1 segment b
pinMode(24,OUTPUT); //LED 1 segment c
pinMode(25,OUTPUT); //LED 1 segment d
pinMode(26,OUTPUT); //LED 1 segment e
pinMode(27,OUTPUT); //LED 1 segment f
pinMode(28,OUTPUT); //LED 1 segment g
pinMode(29,OUTPUT); //LED 2 segment a
pinMode(30,OUTPUT); //LED 2 segment b
pinMode(31,OUTPUT); //LED 2 segment c
pinMode(32,OUTPUT); //LED 2 segment d
pinMode(33,OUTPUT); //LED 2 segment e
pinMode(34,OUTPUT); //LED 2 segment f
pinMode(35,OUTPUT); //LED 2 segment g
pinMode(36,OUTPUT); //LED 3 segment a
pinMode(37,OUTPUT); //LED 3 segment b
pinMode(38,OUTPUT); //LED 3 segment c
pinMode(39,OUTPUT); //LED 3 segment d
pinMode(40,OUTPUT); //LED 3 segment e
pinMode(41,OUTPUT); //LED 3 segment f
pinMode(42,OUTPUT); //LED 3 segment g
pinMode(43,OUTPUT); //LED 4 segment a
pinMode(44,OUTPUT); //LED 4 segment b
pinMode(45,OUTPUT); //LED 4 segment c
pinMode(46,OUTPUT); //LED 4 segment d
pinMode(47,OUTPUT); //LED 4 segment e
pinMode(48,OUTPUT); //LED 4 segment f
pinMode(49,OUTPUT); //LED 4 segment g
pinMode(8,OUTPUT); //Alarm
digitalWrite(8, HIGH); //Sets alarm off initially
}

void display_time () { //Display Time Function

//TenHours (First LED)
if (tenhours==0){
digitalWrite(29, LOW);
digitalWrite(30, LOW);
digitalWrite(31, LOW);
digitalWrite(32, LOW);
digitalWrite(33, LOW);
digitalWrite(34, LOW);
digitalWrite(35, HIGH);}

if (tenhours==1){
digitalWrite(29, HIGH);
digitalWrite(30, LOW);
digitalWrite(31, LOW);
digitalWrite(32, HIGH);
digitalWrite(33, HIGH);
digitalWrite(34, HIGH);
digitalWrite(35, HIGH);}

if (tenhours==2){
digitalWrite(29, LOW);
digitalWrite(30, LOW);
digitalWrite(31, HIGH);
digitalWrite(32, LOW);
digitalWrite(33, LOW);
digitalWrite(34, HIGH);
digitalWrite(35, LOW);}

if (tenhours==3){
digitalWrite(29, LOW);
digitalWrite(30, LOW);
digitalWrite(31, LOW);
digitalWrite(32, LOW);
digitalWrite(33, HIGH);
digitalWrite(34, HIGH);
digitalWrite(35, LOW);}

if (tenhours==4){
digitalWrite(29, HIGH);
digitalWrite(30, LOW);
digitalWrite(31, LOW);
digitalWrite(32, HIGH);
digitalWrite(33, HIGH);
digitalWrite(34, LOW);
digitalWrite(35, LOW);}

if (tenhours==5){
digitalWrite(29, LOW);
digitalWrite(30, HIGH);
digitalWrite(31, LOW);
digitalWrite(32, LOW);
digitalWrite(33, HIGH);
digitalWrite(34, LOW);
digitalWrite(35, LOW);}

if (tenhours==6){
digitalWrite(29, LOW);
digitalWrite(30, HIGH);
digitalWrite(31, LOW);
digitalWrite(32, LOW);
digitalWrite(33, LOW);
digitalWrite(34, LOW);
digitalWrite(35, LOW);}