Taking just the 20th and 21st centuries, the 9th of August is on a Saturday in 1902, 1913, 1919, 1924, 1930, 1941, 1947, 1952, 1958, 1969, 1975, 1980, 1986, 1997, 2003, 2008, 2014, 2025, 2031, 2036, 2042, 2053, 2059, 2064, 2070, 2081, 2087, 2092, and 2098.
Saturday
August 9, 1980 fell on a Saturday.
August 9 1980 was a Saturday.
9 August 2003 was a Saturday.
August 9, 1997 fell on a Saturday.
August 9, 1975 fell on a Saturday.
August 9, 1980 fell on a Saturday.
As of 2011, the next time January 9 will fall on a Saturday will be in 2021.
August 9, 1969 was a Saturday.
Saturday
In any 28-year cycle, beginning, for the sake of convenience, in 2011, and ending in 2038, May 9 will fall on a Saturday in 2015, 2021, 2026, and 2037. For any further years to fit this criterion, add 28 further years to these.
Saturday.