Final answer:
AM shifts typically start in the morning before midday, as in the example of a furniture company starting deliveries at 10 a.m. PM shifts begin in the afternoon or evening after midday.
Step-by-step explanation:
When referencing AM and PM for shifts, these relate to different parts of the day. AM stands for 'ante meridiem' meaning 'before midday' and is used to designate the hours in the first half of the day before noon. Accordingly, servers on an AM shift might start their shift at 10 a.m., as the furniture company mentioned delivers furniture starting at that time.
On the other hand, PM stands for 'post meridiem' meaning 'after midday' and marks the hours in the later half of the day after the sun reaches the local meridian. PM shifts could start at various times in the afternoon or evening, depending on the business's hours of operation.