Friggatriskaidekaphobia and
Paraskavedekatriaphobia is the irrational fear of Friday the 13th (the date not necessarily the film). If you suffer from this it may be advisable to go into hibernation for the rest of 2015 as today is the first of 3 Friday the 13th's this year, there will be one in March and one in November too!
Where did the fear of Friday the 13th come from?
According to folklorists, there’s no written evidence that Friday the 13th was considered unlucky before the 19th century.
Literature
The earliest known documented reference in English appears to be in Henry Sutherland Edwards’ 1869 biography of Gioachino Rossini, who died on Friday 13th.