Observant Jews commemorate the yahrtzeit (Yiddish: יאָרצײַט‎, romanized: yortsayt) of the death of parents, siblings, spouses, or children[2] according to the Hebrew calendar.[3] The main observance involves recitation of kaddish prayer, and a widely practiced custom is to light a special candle that burns for 24 hours, called a yahrtzeit candle.