Tex. Civ. Prac. & Rem. Code § 171.045
Unless otherwise provided by the agreement to arbitrate, the arbitrators may:
(2) on request of a party and for good cause, or on their own motion, postpone the hearing to a time not later than:
Added by Acts 1997, 75th Leg., ch. 165, Sec. 5.01, eff. Sept. 1, 1997.