  Black-body radiation (BBR) shifts of $^3\!P_0-^1\!S_0$ clock transition in
divalent atoms Cd and Zn are evaluated using accurate relativistic many-body
techniques of atomic structure. Static polarizabilities of the clock levels and
relevant electric-dipole matrix elements are computed. We also present a
comparative overview of the BBR shifts in optical clocks based on neutral
divalent atoms trapped in optical lattices.
