A festival of Zeus about which almost nothing is known other than the month in which it was held. Only one Demos (Plotheia) is known to have celebrated it (Parke 136). Robertson says that “for the spring festival Pandia was addressed to Zeus as god of the brightening sky.”
Parke, H.W., Festivals of the Athenians, 1977
Robertson, Noel. “Athena’s Shrines and Festivals.” Worshipping Athena; Panathenaia & Parthenon, edited by Jennifer Neils, University of Wisconsin Press, 1996.