S.C. Code Ann. § 15-39-680

The regular day of judicial sales is the first Monday in each month except when the first Monday in any month is a legal holiday in which case the sale day is on the Tuesday next succeeding the holiday. However, the sheriff may sell personal property on any day after fifteen days' advertisement at any convenient place in his county to be designated in the advertisement. If there is not time to dispose of all the property on sale day the next day following is also a regular sale day, if by public outcry on sale day notice of sale on the next day has been given. Judicial sales of property may be conducted at any other time when so ordered by a court of competent authority or when so directed by an order of reference.