This online lecture is executed during Malaysia MCO during Covid-19 pandemic at Week Online (WOL). The lecture is conducted by Dr. Elya binti Mohd Nor from Electrical & Electronics Engineering, Universiti Pertahanan Nasional Malaysia for her students enrolled in Control Engineering Sem II 2019/2020. The lecture for Time response is divided into Part 1(First order system) and Part 2 (Second order system). The main reference used in this lecture is Nise's Control Systems Engineering, Global Edition.