Reusing Old Calendars - KMOV.com

Reusing Old Calendars

Great Day St. Louis viewer, Andrew Backlund, told us about an idea his daughter had for reusing old calendars. Elizabeth Backlund says by following these guidlines, you only need 14 calendars for the rest of your life.

Principle 1: Any given year ends on the same day of the week it started.

example: Monday - Monday

Principle 2: If it's a leap year, there's an extra day so it ends one day later.

example: Monday - Tuesday

Principle 3: There are only 7 days of the week, so for each kind you have only 7 possible ways the days will line up. Thus, you need only 14 calendars: 7 for the non-leap years, and 7 for the leap years. (Or if you're really thrifty, you can get by with 7 total. On the leap years you can use one calendar for Jan. - Feb., and another for Mar. - Dec. I'm not that thrifty.)

So here is the list of which years actually match up with each other.

Normal Years:

Sunday - Sunday: 1950, 1961, 1967, 1978, 1989, 1995, 2006, 2017, 2023, 2034, 2045, 2051, 2062

Monday - Monday 1951, 1962, 1973, 1979, 1990, 2001, 2007, 2018, 2029, 2035, 2046, 2057, 2063

Tuesday - Tuesday 1957, 1963, 1974, 1985, 1991, 2002, 2013, 2019, 2030, 2041, 2047, 2058, 2069

Wednesday - Wednesday 1958, 1969, 1975, 1986, 1997, 2003, 2014, 2025, 2031, 2042, 2053, 2059, 2070

Thursday - Thursday 1953, 1959, 1970, 1981, 1987, 1998, 2009, 2015, 2026, 2037, 2043, 2054, 2065

Friday - Friday 1954, 1965, 1971, 1982, 1993, 1999, 2010, 2021, 2027, 2038, 2049, 2055, 2066

Saturday - Saturday 1955, 1966, 1977, 1983, 1994, 2005, 2011, 2022, 2033, 2039, 2050, 2061, 2067

Leap Years:

Sunday - Monday 1956, 1984, 2012, 2040, 2068

Monday - Tuesday 1968, 1996, 2024, 2052

Tuesday - Wednesday 1952, 1980, 2008, 2036, 2064,

Wednesday - Thursday 1964, 1992, 2020, 2048

Thursday - Friday 1976, 2004, 2032, 2060

Friday - Saturday 1960, 1988, 2016, 2044

Saturday - Sunday 1972, 2000, 2028, 2056

 

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