  Wireless systems beyond 5G evolve towards embracing both sensing and
communication, resulting in increased convergence of the digital and the
physical world. The existence of fused digital-physical realms raises critical
questions regarding temporal ordering, causality, and the synchronization of
events. This paper addresses the temporal challenges arising from the fact that
the wireless infrastructure becomes an entity with multisensory perception.
With the growing reliance on real-time interactions and applications such as
digital twins, extended reality, and the metaverse, the need for accurate
timestamping and temporal forensics becomes crucial. The paper introduces a
model that incorporates Temporal Windows of Integration (TWI) to emulate human
multisensory perception and discusses the implications for setting timing
constraints in real-time applications and enabling temporal forensics. The
analysis explores trade-offs, probabilities, and bounds for simultaneity and
causality violation in the context of wireless systems evolving towards
perceptive networks. This work underscores the significance of timestamping in
the evolving wireless landscape, provide insights into system-level
implications, and points out new research avenues for systems that combine
sensing and communications.
