Of Timæus we know nothing, nor can we fix his dates. The Chron. puts his accession in the year of Abr. 2288 (270 a.d.), and the accession of his successor, Cyril, in 2297 (279 a.d.), but the former at least is certainly far too early. Harnack (Zeit des Ignatius, p. 53) concludes that Cyril must have been bishop as early as 280, and hence neither Domnus nor Timæus can have held office a great while.