The time periods provided in Rules 2.10, 2.12, 2.15, 2.17 C, 2.17E, 2.17P, 2.25, 3.02, 3.04, 7.11, 9.02, 9.03, 10.02, 11.01, 11.08, and 12.06(d) are mandatory. All other time periods herein provided are directory only and the failure to comply with them does not result in the invalidation of an act or event by reason of the noncompliance with those time limits.
Tex. R. Disc. P. 17.05