明日は土用の入り。立秋（2023-08-08）の前日までの干支は以下の通り

2023-07-20 is 己卯
2023-07-21 is 庚辰
2023-07-22 is 辛巳
2023-07-23 is 壬午
2023-07-24 is 癸未
2023-07-25 is 甲申
2023-07-26 is 乙酉
2023-07-27 is 丙戌
2023-07-28 is 丁亥
2023-07-29 is 戊子
2023-07-30 is 己丑
2023-07-31 is 庚寅
2023-08-01 is 辛卯
2023-08-02 is 壬辰
2023-08-03 is 癸巳
2023-08-04 is 甲午
2023-08-05 is 乙未
2023-08-06 is 丙申
2023-08-07 is 丁酉
https://go.dev/play/p/dxUEvcSnYeW

ちうわけで，土用の丑の日が2回ある