  An intrinsic time of homogeneous models is global. The Friedmann equation by
its sense ties time intervals. Exact solutions of the Friedmann equation in
Standard cosmology and Conformal cosmology are presented. Theoretical curves
interpolated the Hubble diagram on latest supernovae are expressed in
analytical form. The class of functions in which the concordance model is
described is Weierstrass meromorphic functions. The Standard cosmological model
and Conformal one fit the modern Hubble diagram equivalently. However, the
physical interpretation of the modern data from concepts of the Conformal
cosmology is simpler, so is preferable.
