  The conditions of local thermodynamic equilibrium of baryons (non-strange,
strange) and mesons (strange) are presented for central Au + Au collisions at
FAIR energies using the microscopic transport model UrQMD. The net particle
density, longitudinal-to-transverse pressure anisotropy and inverse slope
parameters of the energy spectra of non-strange and strange hadrons are
calculated inside a cell in the central region within rapidity window $|y| <
1.0$ at different time steps after the collision. We observed that the
strangeness content is dominated by baryons at all energies, however
contribution from mesons become significant at higher energies. The time scale
obtained from local pressure (momentum) isotropization and thermalization of
energy spectra are nearly equal and found to decrease with increase in
laboratory energy. The equilibrium thermodynamic properties of the system are
obtained with statistical thermal model. The time evolution of the entropy
densities at FAIR energies are found very similar with the ideal hydrodynamic
behaviour at top RHIC energy.
