  We study the possibility of a hadron-quark phase transition in the interior
of neutron stars, taking into account different schematic evolutionary stages
at finite temperature. Furthermore, we analyze the astrophysical properties of
hot and cold hybrid stars, considering the constraint on maximum mass given by
the pulsars J1614-2230 and J1614-2230. We obtain cold hybrid stars with maximum
masses $\geq 2$ M$_{\odot}$. Our study also suggest that during the
proto-hybrid star evolution a late phase transition between hadronic matter and
quark matter could occur, in contrast with previous studies of proto-neutron
stars.
