Single crystals of Gd3Ga3Al2O12:Ce with B codopants were successfully grown using the Czochralski technique. The timing characteristics of the crystal was measured by coupling the crystal to photomultiplier tubes (PMT) or silicon photodiodes [Si(PIN)]. The two prompt γ-rays emitted in a cascade from 60Co or 22Na source were detected in coincidence using Gd3Ga3Al2O12:Ce,B crystal detectors and a BaF2 detector. The time resolution of these crystals are observed to be better than that measured for CsI:Tl crystal coupled to PMT or Si(PIN) in an identical measurement setup. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.