Final answer:
An appointment within 15 working days or 21 calendar days implies a deadline where working days exclude weekends and holidays, while calendar days include all sequential days. It is vital to monitor such deadlines carefully and remember to follow up with commitments, such as a phone call.
Step-by-step explanation:
When an appointment is made within 15 working days or 21 calendar days, understanding the difference between these time frames is essential. Working days are typically considered Monday through Friday, excluding public holidays, which means the 15 working days span across three weeks if there are no holidays in between. In contrast, 21 calendar days include all days of the week, meaning the appointment could be scheduled within three weeks including weekends.
It's important to mark your calendar and keep track of these deadlines. For instance, if someone reports an average time of forty-five days, as Willcocks (1913) suggests, the 15 working days or 21 calendar days is significantly shorter and requires prompt attention to ensure the timetable is met. Remember, if you indicate you'll make a follow-up phone call, don't forget to do so to stay informed about the status of your application or any other procedures associated with the appointment.