Followers of an evangelical broadcaster who declared that Saturday would be Judgement Day are trying to make sense of the failed prediction.
Some believers expressed bewilderment or said it was a test from God of their faith, after the day passed without event.
Meanwhile, the evangelist at the centre of the claim, Harold Camping, has not been seen since before the deadline.
He had predicted that Jesus Christ would return to earth on Saturday.
True believers would then be swept up, or “raptured”, to heaven, he had pronounced.