How many Friday the thirteenths from 1934 to 2012?

Answer 1

There have been 135 Friday the 13ths including both 1934 and 2012 as follows:

1. Friday 13 April 1934
2. Friday 13 July 1934
3. Friday 13 September 1935
4. Friday 13 December 1935
5. Friday 13 March 1936
6. Friday 13 November 1936
7. Friday 13 August 1937
8. Friday 13 May 1938
9. Friday 13 January 1939
10. Friday 13 October 1939
11. Friday 13 September 1940
12. Friday 13 December 1940
13. Friday 13 June 1941
14. Friday 13 February 1942
15. Friday 13 March 1942
16. Friday 13 November 1942
17. Friday 13 August 1943
18. Friday 13 October 1944
19. Friday 13 April 1945
20. Friday 13 July 1945
21. Friday 13 September 1946
22. Friday 13 December 1946
23. Friday 13 June 1947
24. Friday 13 February 1948
25. Friday 13 August 1948
26. Friday 13 May 1949
27. Friday 13 January 1950
28. Friday 13 October 1950
29. Friday 13 April 1951
30. Friday 13 July 1951
31. Friday 13 June 1952
32. Friday 13 February 1953
33. Friday 13 March 1953
34. Friday 13 November 1953
35. Friday 13 August 1954
36. Friday 13 May 1955
37. Friday 13 January 1956
38. Friday 13 April 1956
39. Friday 13 July 1956
40. Friday 13 September 1957
41. Friday 13 December 1957
42. Friday 13 June 1958
43. Friday 13 February 1959
44. Friday 13 March 1959
45. Friday 13 November 1959
46. Friday 13 May 1960
47. Friday 13 January 1961
48. Friday 13 October 1961
49. Friday 13 April 1962
50. Friday 13 July 1962
51. Friday 13 September 1963
52. Friday 13 December 1963
53. Friday 13 March 1964
54. Friday 13 November 1964
55. Friday 13 August 1965
56. Friday 13 May 1966
57. Friday 13 January 1967
58. Friday 13 October 1967
59. Friday 13 September 1968
60. Friday 13 December 1968
61. Friday 13 June 1969
62. Friday 13 February 1970
63. Friday 13 March 1970
64. Friday 13 November 1970
65. Friday 13 August 1971
66. Friday 13 October 1972
67. Friday 13 April 1973
68. Friday 13 July 1973
69. Friday 13 September 1974
70. Friday 13 December 1974
71. Friday 13 June 1975
72. Friday 13 February 1976
73. Friday 13 August 1976
74. Friday 13 May 1977
75. Friday 13 January 1978
76. Friday 13 October 1978
77. Friday 13 April 1979
78. Friday 13 July 1979
79. Friday 13 June 1980
80. Friday 13 February 1981
81. Friday 13 March 1981
82. Friday 13 November 1981
83. Friday 13 August 1982
84. Friday 13 May 1983
85. Friday 13 January 1984
86. Friday 13 April 1984
87. Friday 13 July 1984
88. Friday 13 September 1985
89. Friday 13 December 1985
90. Friday 13 June 1986
91. Friday 13 February 1987
92. Friday 13 March 1987
93. Friday 13 November 1987
94. Friday 13 May 1988
95. Friday 13 January 1989
96. Friday 13 October 1989
97. Friday 13 April 1990
98. Friday 13 July 1990
99. Friday 13 September 1991
100. Friday 13 December 1991
101. Friday 13 March 1992
102. Friday 13 November 1992
103. Friday 13 August 1993
104. Friday 13 May 1994
105. Friday 13 January 1995
106. Friday 13 October 1995
107. Friday 13 September 1996
108. Friday 13 December 1996
109. Friday 13 June 1997
110. Friday 13 February 1998
111. Friday 13 March 1998
112. Friday 13 November 1998
113. Friday 13 August 1999
114. Friday 13 October 2000
115. Friday 13 April 2001
116. Friday 13 July 2001
117. Friday 13 September 2002
118. Friday 13 December 2002
119. Friday 13 June 2003
120. Friday 13 February 2004
121. Friday 13 August 2004
122. Friday 13 May 2005
123. Friday 13 January 2006
124. Friday 13 October 2006
125. Friday 13 April 2007
126. Friday 13 July 2007
127. Friday 13 June 2008
128. Friday 13 February 2009
129. Friday 13 March 2009
130. Friday 13 November 2009
131. Friday 13 August 2010
132. Friday 13 May 2011
133. Friday 13 January 2012
134. Friday 13 April 2012
135. Friday 13 July 2012