Experimental data Raw data of XMCD images collected at ALBA Synchrotron between 8th to 12th of September 2022. The data are used to create the experimental magnetization curves and magnetic contrast images in the paper Clocked dynamics in artificial spin ice. Additionally, XAS spectra of the Fe L3 edge obtained prior to imaging are included. Folder numbers starting at 225 through to 320 contain the data for the unipolar clocking experiment. The folder "001_XAS_Fe" contains the XAS spectrum of the sample taken prior to this series. Folder numbers starting at 166 through to 217 contain the data for the bipolar clocking experiment. The folder "013_XAS_Fe_L3_CN" contains the XAS spectrum of the sample prior to this series. Simulation data The resulting data from flatspin simulations that are plotted as magnetization curves in the paper Clocked dynamics in artificial spin ice. The folder "flatspin-unipolar" contains the data for the unipolar clocking experiment.The folder "flatspin-bipolar" contains the data for the bipolar clocking experiment.