I'm reading Fowler Clean Code book and I think that my code is a little messy, I want some suggestions:

I have a simple business requirement that is return the date of new execution of my Thread.

I've two class fields: _hour and _day.
If actual day is higher than my _day field I must return true, so I'll add a month to "executionDate"
If the day is the same, but the actual hour is higher than _hour I should return true too.
So I did this simple method:

private bool ScheduledDateGreaterThanCurrentDate (DateTime dataAtual) {

    if (dateActual.Day > _day) {
        return true;
    }

    if (dateActual.Day == _day && dateActual.Hour > _hour) {
        return true;
    }

    if (dateActual.Day == _day && dateActual.Hour == _hour) 
        if (dateActual.Minute>0 || dateActual.Second>0) 
            return true;

    return false;
}

I'm programming with TDD, so I know that the return is correct, but this is bad maintain code right?