Effect of the change of initial angular velocity on the evolution of the HZLs in the case of a 1 M_⊙ star with solar metallicity. Inner and outer edge of the habitable zone are represented by red and black lines, respectively. Standard model is plotted in dotted line and rotation models in dash-dotted, long-dashed, and long-dash-dotted lines for 18, 6.8, and 3.6 Ω_⊙ initial rotation rate, respectively.