A particle executes simple harmonic motion between x = -A and x=+ A. The time taken for it to go from the mean position, O to A2 is T1 and to go from A2 to A is T2. Then,
T1<T2
In SHM, velocity of particle also varies simple harmonically. Speed is more near the mean position and less near the extreme positions. Therefore, the time taken T1 for the particle to go from O to A2 will be less than the time taken to go it from A2 to A or T2