Radiometric dating of some young granites of Jungfrun-Götemar type, southeastern Sweden, gives a Rb-Sr whole-rock age of 1350 ± 11 Ma which is in accordance with earlier obtained values. A U-Pb concordia age from zircons is rejected since the zircons carry cores and consequently yield a mixed age. However, a discordia line with an upper intercept of 1400 Ma, the time of intrusion for the Jungfrun and Götemar granites, may be drawn assuming that the zircons were completely reset at the time of intrusion. A Rb-Sr mineral isochron for a post-Svecokarelian Småland dike porphyry yields an age of 1419 ± 14 Ma. This age was reset, probably at the time of intrusion of the younger granites.