The utility model relates to an automatic and timed closing horizontally pivoted hung window, which comprises a window frame, a sash and a pivoting structure, the sash is arranged in the window frame, the pivoting structure is arranged between the sash and the frame, a working position sensor and a controller for receiving sensor signals are arranged on one side of the window frame, the working position sensor comprises a Hall travel plate with at least one working position and a magnet seat, the magnet seat cooperates with the Hall travel plate and can slide relative to the Hall travel plate, a magnet in the magnet seat corresponds to the Hall travel plate, a timer is arranged by one side of the magnet seat, and the timer is connected with the magnet seat through a transmission structure and can control the magnet seat to slide relative to the Hall travel plate. Under the control of the controller, the automatic and timed closing horizontally pivoted hung window adjusts the rotational angle and rotational direction of a motor, so that the opening angle and opening time of the sash are controlled, consequently, the problems caused by an overhigh window or forgetting to close a sash are solved, the intelligent closing and opening of the automatic and timed closing horizontally pivoted hung window is realized, and the practicability is high.