时酉朱=文件. Exactly your question. 丑 - graveyard, 空. You are absent mind. It will remain "lost" for a while. My guess is that it is inside a cabinet or drawer. deep under a pile of other documents.
年未贵 oppositing 丑. My bet is that you or your assistants have a higher chance to find it on 未日 or 未时.