Mo. Rev. Stat. § 509.390: Regular times and places for hearing motions.

1. Unless local conditions make it impracticable, each trial court shall establish regular times and places, at intervals sufficiently frequent for the prompt dispatch of business, at which motions requiring notice and hearing may be heard and disposed of; but the court at any time or place and on such notice, if any, as he considers reasonable may make orders for the advancement, conduct, and hearing of actions.

2. To expedite its business, the court may make provision by rule or order for the submission and determination of motions without oral hearing upon brief written statements of reasons in support and opposition.