How should I build-up this structure?

So the first part of the task is to create a structure in the following way:

1. the trains id (integer)
2. time ( two integers separated by a colon)
3. whether they will arrive or start (0 for arrival and 1 for start)

I have no problem with the 1 and 3. But I have no clue how should I do the 2 because of the column.
Any ideas would be appreciated!

>Solution :

There are many ways. Here is one:

typedef struct {
    int id;
    int hr;//hr/min can be arranged in a string separated by a space (or colon)
    int min;
    bool direction;//where arriving == false, departing == true
}train_s;

train_s train;

This can be used to create a single instance or an array…

   int main(void)
   {
       train_s train = {0};//single instance

       train.id = 12345;
       sprintf(train.time, "%s", "01:35");
       train.direction = true;
       ...
   

Or a string can be used for time that would allow room for two values in two columns….

typedef struct {
    int id;
    char time[6];//eg "12:00"
    bool direction;//where arriving == false, departing == true
}train_s;     

....

int main(void) 
{     //array of instances...
      train_s train[5] = {{12345, "12:00", 0},
                          {23452, "13:45", 1},
                          {67893, "15:38", 1},
                          {67801, "01:30", 0},
                          {73356, "02:45", 1}};