S.C. Code Ann. § 36-4-213
(a) With respect to settlement by a bank, the medium and time of settlement may be prescribed by Federal Reserve regulations or circulars, clearing-house rules, and the like, or agreement. In the absence of such prescription:
(2) the time of settlement, is:
(c) If settlement for an item is made by cashier's check or teller's check and the person receiving settlement, before its midnight deadline: