  We present the timing results of out-of-eclipse observations of Centaurus X-3
spanning half a binary orbit, performed on 12-13 December, 2016 with the Large
Area X-ray Proportional Counter (LAXPC) on-board AstroSat. The pulse profile
was confirmed to exhibit a prominent pulse peak with a secondary inter-pulse.
The systemic spin period of the pulsar was found to be $4.80188 \pm 0.000085$ s
in agreement with its spin up trend. The spin up timescale seems to have
increased to $7709 \pm 58$ yr that points to negative torque effects in the
inner accretion disk. We also report the derived values of projected semi-major
axis and orbital velocity of the neutron star.
