Ohio Rev. Code § 2945.02
The court of common pleas shall set all criminal cases for trial for a day not later than thirty days after the date of entry of the plea of the defendant. No continuance of the trial shall be granted except upon affirmative proof in open court, upon reasonable notice, that the ends of justice require a continuance.
No continuance shall be granted for any other time than it is affirmatively proved the ends of justice require.
Whenever any continuance is granted, the court shall enter on the journal the reason for the same.
Criminal cases shall be given precedence over civil matters and proceedings. The failure of the court to set such criminal cases for trial, as required by this section, does not operate as an acquittal, but upon notice of such failure or upon motion of the prosecuting attorney or a defendant, such case shall forthwith be set for trial within a reasonable time, not exceeding thirty days thereafter.
R.C. §2945.02