I would answer this with questions:
Will the discrepancy in the number of days as reflected in the outpost result in the legal and technical ineligibity of the bidder?
Will such discrepancy affect the bid amount or the financial standing of the bidder?
If the discrepancy is harmless and obviously a typographical error, then the BAC, through the Secretariat, may clarify the bid during postqualification. If the bidder refuses to clarify, they may be sanctioned (Sec 69.1(g)).