It was a Tuesday.
June 15 1979 was a Friday.
Mother's Day 1979 was celebrated on Sunday May 13 (not UK).
Dance Fever - 1979 1979-05-15 was released on: USA: 15 May 1979
October 15th 1979 was a Monday.
Mother's Day was on May 13th of 1979. Mother's Day is always on the second Sunday of May.
Thursday
16 May 1979 was on a Wednesday.
May 18th, 1979 was a Friday.
May 9th, 1979 fell on a Wednesday.
April 15th, 1979 fell on a Sunday.
May 2, 1979 fell on a Wednesday.
May 7, 1979 fell on a Monday.