I would think not, as the moon doesn't have any effect that I can personally tell on the lengths of days. That would require an intentional tweaking of out position and relation to The Sun. It would be MUCH easier, I would imagine, to just tweak the position of The Earth instead.
yeah it struck me that many of the wiki entrys for the moons being here might entail a change in the earths rotation........and length of day
Formation
Several mechanisms have been suggested for the Moon's formation. The formation of the Moon is believed to have occurred 4.527 ± 0.010 billion years ago, about 30–50 million years after the origin of the Solar System.<SUP class=reference id=cite_ref-39>
[40]</SUP>
<DL><DT>Fission hypothesis <DD>Early speculation proposed that the Moon broke off from the Earth's crust because of
centrifugal forces, leaving a basin – presumed to be the
Pacific Ocean – behind as a scar.<SUP class=reference id=cite_ref-40>
[41]</SUP> This idea, however, would require too great an initial spin of the Earth; and, even had this been possible, the process should have resulted in the Moon's orbit following Earth's
equatorial plane. This is not the case. </DD></DL><DL><DT>Capture hypothesis <DD>Other speculation has centered on the Moon being formed elsewhere and subsequently being captured by Earth's gravity.<SUP class=reference id=cite_ref-41>
[42]</SUP> However, the conditions believed necessary for such a mechanism to work, such as an
extended atmosphere of the Earth in order to
dissipate the energy of the passing Moon, are improbable. </DD></DL><DL><DT>Co-formation hypothesis <DD>The co-formation hypothesis proposes that the Earth and the Moon formed together at the same time and place from the primordial
accretion disk. The Moon would have formed from material surrounding the proto-Earth, similar to the formation of the planets around the Sun. Some suggest that this hypothesis fails adequately to explain the depletion of metallic iron in the Moon. </DD></DL><DL><DD>A major deficiency in all these hypotheses is that they cannot readily account for the high
angular momentum of the Earth–Moon system.<SUP class=reference id=cite_ref-42>
[43]</SUP> </DD></DL><DL><DT>Giant Impact hypothesis <DD>The prevailing hypothesis today is that the Earth–Moon system formed as a result of a
giant impact. A Mars-sized body (labelled "
Theia") is believed to have hit the proto-Earth, blasting sufficient material into orbit around the proto-Earth to form the Moon through accretion.<SUP class=reference id=cite_ref-worldbook_5-4>
[6]</SUP> As accretion is the process by which all planetary bodies are believed to have formed, giant impacts are thought to have affected most if not all planets. Computer simulations modelling a giant impact are consistent with measurements of the
angular momentum of the Earth–Moon system, as well as the small size of the lunar core.<SUP class=reference id=cite_ref-43>
[44]</SUP> Unresolved questions regarding this theory concern the determination of the relative sizes of the proto-Earth and Theia and of how much material from these two bodies formed the Moon. </DD></DL>