I am building an app, and I need to know how to compare two hours.

For example, my store opens at 6:30 AM and closes at 5:00 PM.

I need to show in a `TextView` that after 5 PM my store is closed, and after 6:30 AM my store is open, from Monday to Friday.

How can I do this? This is my attempt:

```java
public void timer() {
    Calendar c = Calendar.getInstance();
    int timeOfDay = c.get(Calendar.HOUR_OF_DAY);
    int open = 6:30; // 1 ERROR HERE WITH ":"
    int close = 17;

    if (timeOfDay < close) {
        hour.setText.("OPEN");
    }
}

```

But I am getting multiple errors. One in int open when I put 06:30 with ":"; two with limit of Monday to Friday.

Thanks for the help.