Time Attributes # Flink can process data based on different notions of time. Processing time refers to the machine’s system time (also known as epoch time, e.g. Java’s System.currentTimeMillis()) that is executing the respective operation. Event time refers to the processing of streaming data based on timestamps that are attached to each row. The timestamps can encode when an event happened. For more information about time handling in Flink, see the introduction about event time and water...
