GLSCORE
Pattern

Pattern results

Months with the same calendar as April 1999

April 1999 begins on Thursday and has 30 days. These months share the same layout.

Base month April 1999
Days in month 30
Matching months 113

What this month pattern shows

These facts explain why the matching months line up with the base month calendar.

Base month
April 1999
Days in month
30
Opening weekday
Thursday
Matching months
113
First match
November 1900
Last match
April 2100

113 months in the archive share the same calendar layout as April 1999.

Matching month calendars

These matching month calendars are grouped by year range so the archive is easier to scan.

1900-1999 55 matches
November 1900 September 1904 June 1905 November 1906 April 1909 September 1910 June 1911 April 1915 June 1916 November 1917 April 1920 September 1921 June 1922 November 1923 April 1926 September 1927 November 1928 September 1932 June 1933 November 1934 April 1937 September 1938 June 1939 April 1943 June 1944 November 1945 April 1948 September 1949 June 1950 November 1951 April 1954 September 1955 November 1956 September 1960 June 1961 November 1962 April 1965 September 1966 June 1967 April 1971 June 1972 November 1973 April 1976 September 1977 June 1978 November 1979 April 1982 September 1983 November 1984 September 1988 June 1989 November 1990 April 1993 September 1994 June 1995
2000-2030 18 matches
June 2000 November 2001 April 2004 September 2005 June 2006 November 2007 April 2010 September 2011 November 2012 September 2016 June 2017 November 2018 April 2021 September 2022 June 2023 April 2027 June 2028 November 2029
2031-2050 12 matches
April 2032 September 2033 June 2034 November 2035 April 2038 September 2039 November 2040 September 2044 June 2045 November 2046 April 2049 September 2050
2051-2100 28 matches
June 2051 April 2055 June 2056 November 2057 April 2060 September 2061 June 2062 November 2063 April 2066 September 2067 November 2068 September 2072 June 2073 November 2074 April 2077 September 2078 June 2079 April 2083 June 2084 November 2085 April 2088 September 2089 June 2090 November 2091 April 2094 September 2095 November 2096 April 2100

Use this month pattern

These links are most useful when you want to compare matching month layouts quickly.

  • Open any matching month calendar to compare the full layout with April 1999.
  • Use the opening dates to verify the same weekday sequence from day 1 onward.
  • Return to the base month calendar when you need the exact day-by-day context.

Matching opening dates

The first day of each matching month starts the same layout.

1 November 1900 1 September 1904 1 June 1905 1 November 1906 1 April 1909 1 September 1910 1 June 1911 1 April 1915 1 June 1916 1 November 1917 1 April 1920 1 September 1921

Explore related pages

These links connect the pattern back to the main archive entities.

Core archive links

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