20H Max.
          From: 2022/04/01 to 2022/07/31
            +---+---+---+---+---+---+---+
            |Mon|Tue|Wed|Thu|Fri|Sat|Sun|
          +-+---+---+---+---+---+---+---+
          |1| 15|  0| 15| 15|  8|  1|  0|
          +-+---+---+---+---+---+---+---+
          |2| 15|  4| 15| 15|  1|  1|  0|
          +-+---+---+---+---+---+---+---+
          |3| 15|  6| 15| 15| 14|  0|  0|
          +-+---+---+---+---+---+---+---+
          |4| 15|  5|  8| 15| 16|  0|  0|
          +-+---+---+---+---+---+---+---+
          |5|  6|  5|  6| 13| 15|  0|  0|
          +-+---+---+---+---+---+---+---+
          |6|  0|  0|  1|  2|  0|  0|  0|
          +-+---+---+---+---+---+---+---+