Texas Government Code - GOV'T § 659.083. Payday

(a) Except as provided by Subsection (b), the comptroller may not pay the salary of a state officer or employee before the first working day of the month following the payroll period.

(b) The comptroller shall pay an employee who is paid twice a month under Section 659.082 on:

(c) In this section, “working day” means a day other than Saturday, Sunday, or a national holiday as listed in the General Appropriations Act or Chapter 662. A day does not cease to be a national holiday because a state agency maintains or is required to maintain a minimum working staff on the holiday.