Accelerating sustainability transitions is crucial for addressing complex challenges and meeting the 2015 Paris Agreement’s climate targets. This chapter examines the role of time in sociotechnical change, emphasizing the urgency of action across energy, agriculture, and manufacturing to reach net-zero emissions by 2050. While acceleration drives innovation, social equity, and economic resilience, it also risks unequal resource distribution and marginalising vulnerable populations. The chapter explores how stakeholders advocate for different timescales and technologies, highlighting the political nature of transitions. It introduces timescapes to capture the dynamic interplay of temporal dimensions shaping transition processes. Historical energy transitions illustrate the complexities of speed, duration, and acceleration, underscoring the need for interdisciplinary approaches. By addressing political and social dynamics, the chapter promotes transparency, equity, and justice in climate action. Future research should integrate diverse methodologies and critically examine temporal frameworks to support more effective and inclusive sustainability policies