We conduct a systematic search for periodic variables in the hot subdwarf catalogue from Geier et al. ( 2019) using data from the Zwicky Transient Facility. We present the classification of 67 HW Vir binaries, 496 reflection effect, pulsation or rotation sinusoids, 11 eclipsing signals, and 4 ellipsoidally modulating binaries. Of these 485 are new discoveries that have not been previously published including a new mass-transferring hot subdwarf binary candidate. These sources were determined by applying the Lomb-Scargle and Box Least Squares periodograms along with manual inspection.We calculated variability statistics on all periodic sources, and compared our results to traditional methods of determining astrophysical variability. We find that β 60% percent of variable targets, mostly sinusoidal variability, would have been missed using the π£πππππππ₯ cut of 0.02. Most HW Virs, eclipsing systems and all ellipsoidal variables were recovered with a π£πππππππ₯ > 0.02. We also find a significant reddening effect, with some variable hot subdwarfs meshing with the main sequence stripe in the Hertzprung-Russell Diagram. Examining the positions of the variable stars in Galactic coordinates, we discover a higher proportion of variable stars within |π| < 25 β’ of the Galactic Plane, suggesting that the Galactic Plane may be fertile grounds for future discoveries if photometric surveys can effectively process the the clustered field.