moving day

from The Collaborative International Dictionary of English v.0.48

Moving \Mov"ing\, n.
   The act of changing place or posture; esp., the act of
   changing one's dwelling place or place of business.
   [1913 Webster]

   {Moving day}, a day when one moves; esp., a day when a large
      number of tenants change their dwelling place.
      [1913 Webster]