When is the birthday of the Jade Emperor?

Chinese people believe that the ninth day of the first lunar month is the birthday of the Jade Emperor, which is called "the birthday of the Jade Emperor" and "the life in the sky", and also called "the day in the sky". On that day, the Taoist temple held a grand birthday ceremony, chanting and worshiping; Every household looks up to heaven to worship and hold the most solemn ceremony, being kind to others and not offending the gods.