This study sought to understand the work of a range of site support roles in New York City’s (NYC) universal pre-kindergarten (pre-K) program. Employing time use methodology, the main research question guiding this study was how do a group of NYC pre-K site support personnel use their time? We also sought to answer the sub-questions: what are the common activities site support personnel spend their time doing and for how long? and how do activities and time use vary across the demographics and roles of site support personnel? (author abstract)