It was the year 2011. Remember that one?
Surprise, Surprise -- it wasn't one of their predictions. It was from one of their competitors, Harold Camping.
"RELIGIOUS LEADERS sometimes predict tragic worldwide events to warn mankind and gather followers. Doomsday prophet Harold Camping and his disciples widely advertised that the earth would be destroyed in 2011. Needless to say, the world is still here." Watchtower 2014 May 1 p.3
I find it interesting that they called Camping a "Doomsday prophet".
Do you suppose they look at themselves as doomsday prophets? I mean, when you consider that their failure record is far more egregious than Campings, it makes you wonder.