How do first, second, and third shifts differ?

In various industries, the need for 24-hour coverage has led to the division of shifts into 8-hour increments, such as the 1st, 2nd, and 3rd shifts. For example, the first shift may run from 8 a.m. to 4 p.m., the second from 4 p.m. to midnight, and the third from midnight to 8 a.m. In manufacturing, the hours are typically 7 a.m. to 3 p.m., 3 p.m. to 11 p.m., and 11 p.m. to 7 a.m. Some positions may require 9-hour shifts with breaks to allow for overlap and communication between workers during shift changes.