As we have discussed, federal courts generally interpret the FLSA in conformity with longstanding FLSA principles stated in, among other seminal cases, United States v. Klinghoffer Bros. Realty Corp., 285 F.2d 487 (2d Cir. 1960). Under the Klinghoffer rule, the FLSA generally just mandates: 1) the payment of overtime at the regular rate for