After the commencement of the hearing, the immigration judge may grant a reasonable adjournment either at his or her own instance or, for good cause shown, upon application by the respondent or the Department of Homeland Security, provided that nothing in this section shall authorize an adjournment that causes the adjudication of an asylum application to exceed 180 days in the absence of exceptional circumstances, consistent with section 208(d)(5)(A)(iii) of the Act and § 1003.10(b) of this chapter.