أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
Late morning when guests are usually up and either gone about their business or checked out, this ensures minimum inconvenience for the guests and clean corridors ready for those about to check in. It might be prudent to then do a "quick" and "quiet" tidy up in the early evening when most of the guests are having dinner or have gone out.
I would say during breakfast time.