This is the 2nd time I am posting about Friday the 13th. The first one was on Friday, 13 October 2006. Is it really true that Friday the 13th is really Black Friday? We probably have seen some bad events occurring on Friday the 13th such as the abduction of Canny Ong on Friday, 13 June 2003 which led to the rape and murder the following day. Perhaps it is just a mere coincidence?

The next Friday the 13th will occur in July this year anyway. So that makes two occurrences of Friday the 13th this year. In every year, there is at least one month with Friday the 13th. However, there can be also two and at most three occurrences. For three occurrences to happen, that year must not be a leap year and hence, if 13 February is a Friday, so will be 13 March and 13 November in the same year.