Between 2020 and 2022, an extensive number of papers about the COVID-19 pandemic have been developed to help authorities in the decision-making process to tackle the pandemic. One of the key functions to achieving a timely response to all the activities is scheduling. Therefore, this paper presents a literature review of all the research regarding scheduling and the COVID-19 outbreak. The search was conducted in SCOPUS and snowballing, gathering a total of 323 papers. A systematic review was conducted, and 43 articles were included. This literature review is classified into five sections: vaccines, testing, developed tools, healthcare scheduling, and others. It was found that the scheduling function is mainly concentrated on designing vaccination strategies. The discussion section provides insights from the literature, including descriptive analysis, used methods, and implemented models.