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May 2031: lunisolar dates, rokuyō, sexagenary days

Day	Wd	Lunisolar	Rokuyō	Kanshi	Terms
1	Thu	leap M3 D10	Shakkō	辛丑
2	Fri	leap M3 D11	Senshō	壬寅	88th night
3	Sat	leap M3 D12	Tomobiki	癸卯
4	Sun	leap M3 D13	Senbu	甲辰
5	Mon	leap M3 D14	Butsumetsu	乙巳
6	Tue	leap M3 D15	Taian	丙午	Rikka (Start of summer) 01:35
7	Wed	leap M3 D16	Shakkō	丁未
8	Thu	leap M3 D17	Senshō	戊申
9	Fri	leap M3 D18	Tomobiki	己酉
10	Sat	leap M3 D19	Senbu	庚戌
11	Sun	leap M3 D20	Butsumetsu	辛亥
12	Mon	leap M3 D21	Taian	壬子
13	Tue	leap M3 D22	Shakkō	癸丑
14	Wed	leap M3 D23	Senshō	甲寅
15	Thu	leap M3 D24	Tomobiki	乙卯
16	Fri	leap M3 D25	Senbu	丙辰
17	Sat	leap M3 D26	Butsumetsu	丁巳
18	Sun	leap M3 D27	Taian	戊午
19	Mon	leap M3 D28	Shakkō	己未
20	Tue	leap M3 D29	Senshō	庚申
21	Wed	M4 D1	Butsumetsu	辛酉	Shōman (Grain buds) 14:28
22	Thu	M4 D2	Taian	壬戌
23	Fri	M4 D3	Shakkō	癸亥
24	Sat	M4 D4	Senshō	甲子
25	Sun	M4 D5	Tomobiki	乙丑
26	Mon	M4 D6	Senbu	丙寅
27	Tue	M4 D7	Butsumetsu	丁卯
28	Wed	M4 D8	Taian	戊辰
29	Thu	M4 D9	Shakkō	己巳
30	Fri	M4 D10	Senshō	庚午
31	Sat	M4 D11	Tomobiki	辛未

Computed from the JPL DE421 ephemeris with Skyfield, in Japan Standard Time. The lunisolar dates follow the traditional Tenpō rules for reference only (the leap month around 2033 is disputed). Rokuyō and the sexagenary cycle are calendar customs, not predictions.

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Daily lunisolar date, rokuyō and sexagenary day for May 2031, with solar terms; 5 taian days and 5 butsumetsu days.