public static int timestampMillisToTime(long ts) {
    return (int) (ts % MILLIS_PER_DAY);
  }
Get time from a timestamp.

@param ts the timestamp in milliseconds.
@return the time in milliseconds.
amoro-format-mixed/amoro-mixed-flink/amoro-mixed-flink-common/src/main/java/org/apache/amoro/flink/util/DateTimeUtils.java