Saturday.
It was a Sunday.
December 9th, 1950 fell on a Saturday.
December 9th, 2011 fell on a Friday.
9th May 1961, was a Tuesday.
December 26, 1961 was a Tuesday.
15th December 1961 was a Friday.
25th December 1961 was on a Monday.
December 22 1961 was a Friday.
December 8th 1961 was a Friday.
December 2nd 1961 was a Saturday.
27th December 1961 was a Wednesday.
its 9th December 1961 or 1964