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May 2021: lunisolar dates, rokuyō, sexagenary days

Day	Wd	Lunisolar	Rokuyō	Kanshi	Terms
1	Sat	M3 D20	Butsumetsu	己酉	88th night
2	Sun	M3 D21	Taian	庚戌
3	Mon	M3 D22	Shakkō	辛亥
4	Tue	M3 D23	Senshō	壬子
5	Wed	M3 D24	Tomobiki	癸丑	Rikka (Start of summer) 15:47
6	Thu	M3 D25	Senbu	甲寅
7	Fri	M3 D26	Butsumetsu	乙卯
8	Sat	M3 D27	Taian	丙辰
9	Sun	M3 D28	Shakkō	丁巳
10	Mon	M3 D29	Senshō	戊午
11	Tue	M3 D30	Tomobiki	己未
12	Wed	M4 D1	Butsumetsu	庚申
13	Thu	M4 D2	Taian	辛酉
14	Fri	M4 D3	Shakkō	壬戌
15	Sat	M4 D4	Senshō	癸亥
16	Sun	M4 D5	Tomobiki	甲子
17	Mon	M4 D6	Senbu	乙丑
18	Tue	M4 D7	Butsumetsu	丙寅
19	Wed	M4 D8	Taian	丁卯
20	Thu	M4 D9	Shakkō	戊辰
21	Fri	M4 D10	Senshō	己巳	Shōman (Grain buds) 04:37
22	Sat	M4 D11	Tomobiki	庚午
23	Sun	M4 D12	Senbu	辛未
24	Mon	M4 D13	Butsumetsu	壬申
25	Tue	M4 D14	Taian	癸酉
26	Wed	M4 D15	Shakkō	甲戌
27	Thu	M4 D16	Senshō	乙亥
28	Fri	M4 D17	Tomobiki	丙子
29	Sat	M4 D18	Senbu	丁丑
30	Sun	M4 D19	Butsumetsu	戊寅
31	Mon	M4 D20	Taian	己卯

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 2021, with solar terms; 6 taian days and 6 butsumetsu days.