The 30-hour rule is worded so that the focus is on what the employee's usual work schedule is. There is no limit on the number of hours employees 16 years or older may work in any workweek.The standard work day is eight hours, but may deviate depending on departmental operating needs. The work day may exclude approved meal periods. (b) The person may not deny an employee at least one period of 24 consecutive hours of time off for rest or worship in each seven-day period. No more than 3 working hours in a day or 18 hours in a week when school is in session. Those who have the same or substantially similar interests concerning wages, hours, and working conditions are grouped together in a bargaining unit. No more than 3 working hours in a day or 18 hours in a week when school is in session. State law references: County personnel and employment, V.T.C.A., Local. Government Code §§ 151.001--180.003. ______.