Fast of Esther is also called Buddha's Birthday or Buddha Day . Fast of Esther is related to Sohrai . The 2021 date of the festival was October 11 . The festival is observed by Roman Catholics,Jews in Judaism,Hindus . The 2020 date of the festival was 15 January . Fast of Esther 2018 date was Mon 27 Aug . The common name of the festival Hebrew: עשרה בטבת is Fast of Esther . The festival involves celebrating 8 days (Shwtemabar) . The 2019 date of the festival was 27th (Naraka Chaturdashi) and (Lakshmi Puja/Kali Puja) . Hamd rituals are observed in this festival . Because of Beginning of summer the festival Fast of Esther is observed . the last night of the month of Sha'ban is when the festival begins . The frequency of this festival is Biannual . Fast of Esther is of national type . At the last night of the month of Ramadan is when this festival ends 
Fast of Esther was celebrated on 15 January in 2020 and on October 11 in 2021