The term "business hours" refers to the standard operating hours of a business or office, during which it is open and available for customers or clients. This typically includes regular weekday working hours, such as 9am-5pm Monday through Friday, although some businesses may have slightly different schedules or be open on Saturdays or Sundays as well. During business hours, employees are expected to be present and ready to serve customers, while outside of these times the establishment is typically closed for rest or maintenance.