  In this paper we generalized a result of Soley Ersoy and Kemal Eren [10]
about Bonnet timelike surface in Minkowski 3-space. We give a necessary and
sufficient condition for a surface M in a Lorentzian 3-space to be timelike
Bonnet surface. At the end, a theorem of classification of timelike Bonnet
surface in a Lorentzian 3-space is given.
