The impact time constrained guidance (ITCG) problem of interceptors against a stationary target with wind disturbance is investigated in this paper. Firstly, the guidance model with wind disturbance is modelled, and the wind disturbance is simplified as the combination of the basic model and uncertain disturbance. Secondly, based on the time-to-go estimation, a specified impact time guidance law is presented to overcome the wind disturbance. The adaptive theory and Lyapunov theory are adopted to prove the convergence of guidance error. In addition, the interception scene is expanded to the case of multiple missiles in order to achieve the salvo guidance. Finally, the validity of the guidance law is validated by a numerical example.