Enacting both clock and event time – ambitemporality – in organizational change is beneficial but contradictory. Prior research establishes that actors valuing the co-existence of both time conceptions enables ambitemporality in change. However, this is likely to be problematic in many organizations because clock time is hegemonic. Clock time not only exerts systemic influences, but its proponents also work to exclude event time perspectives from affecting change. So how does event time influence change in these contexts? I explore, in an ethnography of an organizational change, how the clock‒event time dialectic shapes the doing of time in change. The study’s primary contribution is in showing that event time proponents gain power to influence change through two types of political action: uncertainty switching and plasticizing temporal boundaries. A secondary contribution demonstrates the specific features of conflict that enable ambitemporality to emerge despite power asymmetries existing between the contradictory time conceptions.

在组织变革中同时制定时间和事件时间（即双时性）是有益的，但却是自相矛盾的。先前的研究表明，评估两种时间观念并存的行为者可以在变革中体现出时代性。但是，这在许多组织中可能会出现问题，因为时钟时间是霸主地位。时钟时间不仅施加系统性影响，而且其拥护者还努力将事件时间观点排除在影响变化之外。那么事件时间如何在这些情况下影响变化？在组织变革的人种志中，我探讨了时钟事件时间辩证法如何塑造变革中的时间。这项研究的主要贡献在于，事件时间的支持者通过两种类型的政治行动获得了影响变化的力量：不确定性的转变和塑化时间边界。