concurrence

This term carries a formal, often bureaucratic or legal weight, suggesting a structured alignment of opinions or a necessary official sign-off. It differs from simple agreement by implying a convergence of separate entities or viewpoints into a single shared position.

When referring to time, it describes the precise overlapping of events. This sense is more technical than coincidence, focusing on the simultaneous nature of occurrences rather than the surprising or accidental quality of their meeting.