  We studied the presence and spatiotemporal evolution of the quasi-biennial
oscillations (QBOs) in the rotation rate residuals at target depths of
0.90$R_{\odot}$, 0.95$R_{\odot}$, and 0.99$R_{\odot}$ and at low (0 --
30$^{\circ}$), mid (30 -- 50$^{\circ}$), and high (50 -- 70$^{\circ}$)
latitudinal bands. To achieve these objectives we used data from the Michelson
Doppler Imager (MDI) on {\it the Solar and Heliospheric Observatory} ({\it
SOHO}) and the Helioseismic and Magnetic Imager (HMI) on the {\it Solar
Dynamics Observatory} ({\it SDO}), covering solar cycles 23 and 24,
respectively. The results show that there are QBO-like signals in each
latitudinal band and depth however they are affected by higher amplitude and
longer-time scale variations. The QBO-like signals found in each target depth
and latitudinal bands show different spatiotemporal evolution. The amplitudes
of variations of the rotation rate residuals in the QBO timescale increase with
increasing depth.
