This workshop focuses on the direct observation of material properties over varying length and time scales to better understand and control matter for solving major scientific challenges. It highlights recent advancements in lightsource technology, such as attosecond time resolution at XFELs and improved spatial resolution at 4th-generation synchrotrons. The event, organized by Stanford Synchrotron Radiation Lightsource (SSRL) and Linac Coherent Light Source (LCLS) at SLAC, aims to explore new research opportunities while addressing gaps in time-resolved experimental methods, ultimately supporting the scientific user community conducting advanced studies.