This summary is not the rule. The rule text controls.
If you need more time before your traffic hearing, you can ask the court to reschedule it. This is called a continuance. To get one, you need to give the court a good reason why you need more time.
Either side in the case can make this request, not just the person accused of the traffic violation. The court will look at your reason and decide if it counts as good cause. Things like needing more time to gather evidence, dealing with a scheduling conflict, or having a medical emergency are examples of reasons courts often accept.
Keep in mind that asking for a continuance does not guarantee you will get one. The judge makes the final call based on your specific situation. If you need to request a continuance, it is best to do so as soon as you know you need it, rather than waiting until the last minute.