In this subchapter:
(1) "Part-time state employee" means a state employee who normally works fewer than 40 hours each week.
(2) "State agency" means a unit of state government, including a state board, commission, council, department, committee, agency, or office that was created by the constitution or a statute of this state and is in any branch of state government. The term does not include a local government, a river authority, a special district, any other political subdivision, or an institution of higher education as defined by Section 61.003, Education Code.
(3) "State employee" means an employee of a state agency or an appointed officer of a state agency whose office is not created by the state constitution. The term includes a part-time, hourly, or temporary state employee.
(4) "Workday" means a day on which a state employee is normally scheduled to work. The term does not include a national or state holiday.