At How can I find tomorrow's or yesterday's date in a script?, some anonymous person left what I consider to be a stupid comment.
Now before anyone gets their politically correct hackles all aroused, I am not implying that the person who left the comment is bereft of intelligence, is incapable of intelligent comments, is unworthy of human association and so on. We all say stupid things now and then: we are momentarily distracted and unthinking, we're in a hurry, whatever. If there exists a person who has never once said or done something stupid, I don't want to know them: I wouldn't like them at all.
In this case, the answer (one answer) was right on on the page itself...