In a flexible work schedule, the employer sets shifts on which days the employee must come to work, but leaves the employee free to decide what hours he will work. It is important to work a set number of hours (for example, 8 hours per day). This model is very appealing, because certain hours, during which the person did not work, can be postponed to the next month with the consent of the employer. A schedule like this can be set for several or all days of the week, depending on the employer.