Geshi (Summer solstice): dates and times 1951–2050

How often each date occurs

Jun 2169

Jun 2231

Year	Date	Day	Time (JST)
1951	Jun 22	Fri	15:25
1952	Jun 21	Sat	20:12
1953	Jun 22	Mon	02:00
1954	Jun 22	Tue	07:54
1955	Jun 22	Wed	13:31
1956	Jun 21	Thu	19:24
1957	Jun 22	Sat	01:20
1958	Jun 22	Sun	06:57
1959	Jun 22	Mon	12:50
1960	Jun 21	Tue	18:42
1961	Jun 22	Thu	00:30
1962	Jun 22	Fri	06:24
1963	Jun 22	Sat	12:04
1964	Jun 21	Sun	17:57
1965	Jun 21	Mon	23:56
1966	Jun 22	Wed	05:33
1967	Jun 22	Thu	11:23
1968	Jun 21	Fri	17:13
1969	Jun 21	Sat	22:55
1970	Jun 22	Mon	04:43
1971	Jun 22	Tue	10:20
1972	Jun 21	Wed	16:06
1973	Jun 21	Thu	22:01
1974	Jun 22	Sat	03:38
1975	Jun 22	Sun	09:26
1976	Jun 21	Mon	15:24
1977	Jun 21	Tue	21:14
1978	Jun 22	Thu	03:10
1979	Jun 22	Fri	08:56
1980	Jun 21	Sat	14:47
1981	Jun 21	Sun	20:45
1982	Jun 22	Tue	02:23
1983	Jun 22	Wed	08:09
1984	Jun 21	Thu	14:02
1985	Jun 21	Fri	19:44
1986	Jun 22	Sun	01:30
1987	Jun 22	Mon	07:11
1988	Jun 21	Tue	12:57
1989	Jun 21	Wed	18:53
1990	Jun 22	Fri	00:33
1991	Jun 22	Sat	06:19
1992	Jun 21	Sun	12:14
1993	Jun 21	Mon	18:00
1994	Jun 21	Tue	23:48
1995	Jun 22	Thu	05:34
1996	Jun 21	Fri	11:24
1997	Jun 21	Sat	17:20
1998	Jun 21	Sun	23:03
1999	Jun 22	Tue	04:49
2000	Jun 21	Wed	10:48
2001	Jun 21	Thu	16:38
2002	Jun 21	Fri	22:24
2003	Jun 22	Sun	04:10
2004	Jun 21	Mon	09:57
2005	Jun 21	Tue	15:46
2006	Jun 21	Wed	21:26
2007	Jun 22	Fri	03:06
2008	Jun 21	Sat	08:59
2009	Jun 21	Sun	14:46
2010	Jun 21	Mon	20:28
2011	Jun 22	Wed	02:17
2012	Jun 21	Thu	08:09
2013	Jun 21	Fri	14:04
2014	Jun 21	Sat	19:51
2015	Jun 22	Mon	01:38
2016	Jun 21	Tue	07:34
2017	Jun 21	Wed	13:24
2018	Jun 21	Thu	19:07
2019	Jun 22	Sat	00:54
2020	Jun 21	Sun	06:44
2021	Jun 21	Mon	12:32
2022	Jun 21	Tue	18:14
2023	Jun 21	Wed	23:58
2024	Jun 21	Fri	05:51
2025	Jun 21	Sat	11:42
2026	Jun 21	Sun	17:25
2027	Jun 21	Mon	23:11
2028	Jun 21	Wed	05:02
2029	Jun 21	Thu	10:48
2030	Jun 21	Fri	16:31
2031	Jun 21	Sat	22:17
2032	Jun 21	Mon	04:09
2033	Jun 21	Tue	10:01
2034	Jun 21	Wed	15:44
2035	Jun 21	Thu	21:33
2036	Jun 21	Sat	03:32
2037	Jun 21	Sun	09:22
2038	Jun 21	Mon	15:09
2039	Jun 21	Tue	20:57
2040	Jun 21	Thu	02:46
2041	Jun 21	Fri	08:36
2042	Jun 21	Sat	14:16
2043	Jun 21	Sun	19:58
2044	Jun 21	Tue	01:51
2045	Jun 21	Wed	07:34
2046	Jun 21	Thu	13:15
2047	Jun 21	Fri	19:04
2048	Jun 21	Sun	00:54
2049	Jun 21	Mon	06:47
2050	Jun 21	Tue	12:33

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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Geshi (Summer solstice) (solar longitude 90°): earliest in 2048 (Jun 21 00:54 JST), latest in 1951 (Jun 22 15:25).