16 TAC § 22.4. Computation of Time

(a) Counting Days. In computing any period of time prescribed or allowed by this chapter, by order of the commission or any administrative law judge, or by any applicable statute, the period shall begin on the day after the act, event, or default in question. The period shall conclude on the last day of the designated period unless that day is a day the commission is not open for business, in which event the designated period runs until the end of the next day on which the commission is open for business.

(b) Extensions. Unless otherwise provided by statute, the time for filing any documents may be extended, upon the filing of a motion, prior to the expiration of the applicable period of time, showing that there is good cause for such extension of time and that the need for the extension is not caused by the neglect, indifference, or lack of diligence of the party making the motion.