The subject of this study is the observation that some patients will give the year of their birth and the current year correctly but are unable to give their correct age.Pertinent literature is quoted. Five hundred female patients, chosen at random, were interviewed. The results were tabulated with means and standard deviations. It was found that this symptom occurs only in regressed schizophrenics and that it might be a diagnostic and prognostic aid. An attempt is made to interpret this phenomenon from the psycho-structural frame of reference.