The management of extracurricular green and digital initiatives is critical to effectively integrating sustainability and technology into school time. The ‘five billion hours challenge’ highlights the difficulty of measuring and managing teachers’ non-teaching time, which has increased as a result of digitalisation and the transition to twinning. Teachers face a wide range of non-teaching tasks, including preparation, assessment, communication, administration, and managing projects and meetings. Digital tools and AI can help streamline these tasks, but their implementation requires careful management to avoid overload and ensure productivity. Efficient handling of non-teaching obligations, such as leveraging digital communication and rethinking assessment methods, is essential to optimise teachers’ time. In addition, fostering a collaborative and digital preparation environment, empowering students, and allocating additional time for twin transition projects can further support the integration of sustainability and technology in education.