I think it is just a common sense question. Each task must have a due date, the date in which the task must be accomplished, and a reminder date, the date in which I must be reminded about the task and its due time.
For instance, if I have an appointment with the doctor on Monday at 18:00, I need to be reminded in advance, for example the same day at 9:00 or the day before. Otherwise, I will miss the appointment.
I think it is just a common sense question. Each task must have a due date, the date in which the task must be accomplished, and a reminder date, the date in which I must be reminded about the task and its due time.
For instance, if I have an appointment with the doctor on Monday at 18:00, I need to be reminded in advance, for example the same day at 9:00 or the day before. Otherwise, I will miss the appointment.