That day was a Friday.
See also the link to a perpetual calendar.
Longines Chronoscope - 1951 1954-12-31 was released on: USA: 31 December 1954
Windows calendar says it was a Sunday.
It was a Sunday.
October 31, 1954 fell on a Sunday.
March 13th, 1954 was a Saturday!
It was a Friday.
Justice - 1954 Fear by Day 2-31 was released on: USA: 28 April 1955
September 12, 1954 was a Sunday.
January 12 1954, was a Tuesday
You did not indicate a full year... 12/31/50: Sunday 12/31/51: Monday 12/31/52: Wednesday 12/31/53: Thursday 12/31/54: Friday 12/31/55: Saturday 12/31/56: Monday 12/31/57: Tuesday 12/31/58: Wednesday 12/31/59: Thursday As you can tell, through the 2 day skips in 1952 and 1956 they were leap years. Hope this helps !
Disneyland - 1954 The Liberators 31-17 is rated/received certificates of: Australia:PG Germany:12 Iceland:L
Disneyland - 1954 Bride of Boogedy 31-23 was released on: USA: 12 April 1987