Prior to COVID-19 lockdowns, the Federal Republic of Nigeria had taken measures to improve the quality of education and of teachers' working conditions such as by improving school infrastructure and accelerating teacher training programs, and providing incentive schemes for teachers. While education is free and compulsory, Nigeria reports the highest number of out-of-school children in the world. Economic consequences of the COVID-19 pandemic, the impact of school closures, and the shift towards remote learning are anticipated to pose further constraints and push even more vulnerable children out of the education system. Teacher absenteeism and the poor use of instructional time are also significant problems for the Nigerian education system, negatively affect students' academic performance and learning. This Time to Teach study seeks to support both federal and state governments by providing a comprehensive understanding of teacher attendance in the country's primary schools. It also aims to provide insights into how attendance challenges may be similar or different across the types of schools (public/Quranic/private) and settings (urban/rural) and more importantly, how these can inform teacher policy design and implementation. Though data were collected prior to COVID-19 school closures, this study also aims to provide insights on how the pandemic may further exacerbate existing challenges.