Add time t1+t2 in c code

time AddTime(time t1, time t2)

this function takes two variables of type time and add those times and return the resultant time.

e.g if t1 = 23:45:50 and t2 = 04:20: 25 then resultant time should be 04:06:15. Note that seconds and minutes are rounded to 60 whereas hour is rounded to 24.

#include<stdio.h>

#include<stdlib.h>

struct time {

    int hour;

    int minute;

    int sec;

};

struct time t1,t2;

struct time add_time(struct time t1,struct time t2){

    struct time add;

    add.hour   = t1.hour + t2.hour;

    add.sec    = t1.sec + t2.sec;

    add.minute = t1.minute + t2.minute;

    if(add.hour>23)

    {

        add.hour=add.hour-24;

    }

     if(add.minute>59)

    {

        add.minute=add.minute-60;

    }

     if(add.sec>59)

    {

        add.sec=add.sec-60;

    }

    return add;

}

void main()

{

    struct time sum;

    printf("enter the the time 1:\n");

    printf("Enter hours, minutes and seconds respectively:\n ");

    scanf("%d%d%d",&t1.hour,&t1.minute,&t1.sec);

    printf("enter the the time 2\n\n");

    printf("Enter hours, minutes and seconds respectively:\n ");

    scanf("%d%d%d",&t2.hour,&t2.minute,&t2.sec);

    sum=add_time(t1,t2);

    printf("t1+t2  =   %d : %d : %d\n\n\n",sum.hour,sum.minute,sum.sec);

system("pause");

}