Defendants who are represented by attorney should request their counsel file a motion to continue on their behalf.
If you represent yourself (Pro Se) you may motion the court in writing to continue a scheduled hearing. Clerks can provide you with a form to complete, and there is one on-line, which should be brought to the City Attorneys so their office can indicate on the motion whether the continuance is opposed by the prosecution or not. Your motion should indicate how much time in weeks you are asking for and why. The motion should be signed and dated by the defendant and filed with the court.