In Illinois, 8 hours is defined as a legal day's work in all occupations, except farming, unless there is a special contract or agreement to the contrary (IL Comp Stat. Ch. 820 Sec. 145/1). This provision, however, does not prevent employees from working any amount of overtime or extra hours. Employers must pay employees overtime of 1 1 / 2 times their regular rate after working 40 hours in a workweek (IL Comp Stat. Ch. 820 Sec. 105/4(a)).
“Hours worked” means all the time an employee is required to be on duty, or on the employer's premises, or at other prescribed places of work, and any additional time he or she is required or permitted to work for the employer.
Recordkeeping. Regardless of an employee's status as either exempt or nonexempt, every employer must keep the following records for at least 3 years: the name and address, the hours worked each day in each work week, the rate of pay, copies of certain notices provided to the employee, the amount paid each pay period, and all deductions made from wages or final compensation. Additionally, any employer that provides paid vacation to its employees must maintain records for at least 3 years regarding the number of vacation days earned for each year and the dates on which vacation days were taken and paid.