Texas Code of Criminal Procedure - CRIM P Art. 45.038. New Trial Granted

(a) Not later than the 10th day after the date that the judgment is entered, a justice or judge may, for good cause shown, grant the defendant a new trial, whenever the justice or judge considers that justice has not been done the defendant in the trial of the case.

(b) If a motion for a new trial is not granted before the 11th day after the date that the judgment is entered, the motion shall be considered denied.