This article examines how the rise of social media affects the temporal relations of protest communication. Following a relational approach, it traces how regimes of temporality are constructed and transformed through the entanglement between media infrastructures, institutions, and practices. These regimes involve particular 'speeds' -the rate at which media content is renewedas well as 'temporal orientations' towards present, past, and future. The article questions how specific temporal regimes enable or complicate protestors' efforts to gain public legitimacy. A large body of research suggests that it is difficult to gain such legitimacy in the mainstream news cycle, in which protest is primarily covered from an 'episodic' perspective, ignoring larger protest issues. The present analysis suggests that despite the participatory affordances of social media, it has not become any easier to generate sustained public attention for structural protest issues. Drawing examples from three case studies, it demonstrates that the dominant mode of social media protest communication reproduces and reinforces the episodic focus of the mainstream news. While other temporal perspectives on protest are certainly developed in the alternative and mainstream news, as well as in activist social media communication, these do not fundamentally challenge the prevailing temporal orientation towards the present, towards the event.ARTICLE HISTORY