  The time operator for a quantum singular oscillator of the
Calogero-Sutherland type is constructed in terms of the generators of the
SU(1,1) group. In the space spanned by the eigenstates of the Hamiltonian, the
time operator is not self-adjoint. We show, that the time-energy uncertainty
relation can be given the meaning within the Barut-Girardello coherent states
defined for the singular oscillator.We have also shown the relationship with
the time-of-arrival operator of Aharonov and Bohm.
