Flextime, or flexible working hours, allows employees to choose, within certain limits, when they start and end their workday. Usually the organization defines a core period (such as 10 A.M. to 3 P.M.) when all employees will be at work. Each employee then decides when to start and end the workday as long as the hours encompass the core period. Some flextime programs allow employees to vary the hours worked each day as long as they meet some specific weekly total, which is usually 40 hours