  The measurement of time-dependent CP asymmetries in charm decays can provide
a unique insight into the flavor changing structure of the Standard Model. We
examine a number of different CP eigenstate decays of D mesons and describe a
method that can be used to measure time-dependent CP asymmetries at existing
and future experiments, with a preliminary assessment, based on statistical
considerations, of their various capabilities. Any asymmetry observed in
time-dependent analysis of neutral D mesons could signify new physics. We
discuss the measurements required to perform direct and indirect tests of the
charm unitarity triangle and the relationship between this and the B_d
unitarity triangle.
  We also highlight that current experimental bounds on DeltaGamma(B_d)
translate into a significant systematic uncertainty on the measurement of beta
from b to c c-bar s decays.
