Hello, I want to calculate daily access count using Flink streaming. Flink's TumblingProcessingTimeWindow assigns events to windows of 00:00 GMT to 23:59 GMT each day, but I live in Japan (GMT+09:00) and want date boundaries to be 09:00 GMT (00:00 JST). Do I have to implement my own WindowAssigner for this use case?
Thanks, Hironori Ogibayashi
