((a)) Except as provided in subsection (b) and after notice, the court shall hold a hearing on confirmation of the plan. A party in interest may object to confirmation of the plan.
((b)) The hearing on confirmation of the plan may be held not earlier than 20 days and not later than 45 days after the date of the meeting of creditors under section 341(a), unless the court determines that it would be in the best interests of the creditors and the estate to hold such hearing at an earlier date and there is no objection to such earlier date.