  We consider timelike and spacelike reductions of 4D, N = 2 Minkowskian and
Euclidean vector multiplets coupled to supergravity and the maps induced on the
scalar geometry. In particular, we investigate (i) the (standard) spatial
c-map, (ii) the temporal c-map, which corresponds to the reduction of the
Minkowskian theory over time, and (iii) the Euclidean c-map, which corresponds
to the reduction of the Euclidean theory over space. In the last two cases we
prove that the target manifold is para-quaternionic Kahler.
  In cases (i) and (ii) we construct two integrable complex structures on the
target manifold, one of which belongs to the quaternionic and para-quaternionic
structure, respectively. In case (iii) we construct two integrable para-complex
structures, one of which belongs to the para-quaternionic structure.
  In addition we provide a new global construction of the spatial, temporal and
Euclidean c-maps, and separately consider a description of the target manifold
as a fibre bundle over a projective special Kahler or para-Kahler base.
