John Titor spelled backwards is rotiT nhoJ

if you add up the letters, it's 5 and 4

multiply 5 and 4 and you have 20

20 is 8 because
10+10=20
10=4
10=4
4+4-8
8/2=3

Today is the 3rd.

Sooo....

in conclusion... John Titor spells June 6, 2012