Description: Event time processing in data processing systems is a technique that allows systems to handle events based on when they actually occurred, rather than when they were received by the system. This capability is crucial in applications where the order and timing of events are fundamental, such as in real-time data analysis. It employs a time model that enables developers to define how event time should be interpreted, using either processing time (the moment the event is received) or event time (the moment the event occurred in the real world). This flexibility allows systems to correctly manage events that may arrive out of order or with delays, which is common in distributed systems. Additionally, event time processing enables the implementation of time windows, where events are grouped and processed over specific time intervals, facilitating the analysis of trends and patterns in the data. In summary, event time processing is an essential feature that enhances the accuracy and relevance of real-time data analysis, allowing organizations to make more informed decisions based on events that reflect the temporal reality of the situations they are analyzing.