On Bright lunar fortnight Full Moon) (June–July),Second Sunday in May (Taiwan), Guru Purnima is celebrated . August 25, 2019 is when the festival begins . Guru Purnima ends on 11 days after the start . Guru Purnima is also called Donba . Vesak is related to Guru Purnima . The frequency of this festival is every year (lunar calendar) . The festival involves celebrating party; eat festival delicacies . Guru Purnima 2020 date was Sunset, 10 December – nightfall, 18 December . Jews in Judaism,Hindu devotees & Buddhist disciples in India and Nepal observe Guru Purnima festival . The 2021 date of the festival was Friday, 12 February, Ox . The 2019 date of the festival was Wednesday 20 March 2019,at 21:58 UTC * . Because of 250 disciples the festival Guru Purnima is observed . The 2018 date of the festival was February 28 . The official name of the festival Guru Purnima is Dr. Babasaheb Ambedkar Jayanti . litany rituals are observed in this festival
Guru Purnima is started on 13th day of Adar at dawn (if Shabbat then 11th day of Adar at dawn)