We introduce a new NMR method for the direct determination of molecular correlation times. This method is applicable for any system in which a single relaxation mechanism predominates; it utilizes experimentally determined longitudinal and transverse relaxation times, but the relaxation coupling parameter plays no role. We demonstrate the use of this method to measure the temperature dependence of the N-14 quadrupole coupling constant of isocyanomethane, CH3NC, in a solution of ethanol and ethylene glycol.