Blessed Rainy Day (Dzongkha: ཁྲུས་འབབས་ཀྱི་ཉིནམ།) known as Trhuebab is an important cultural event observed mainly in the eastern Bhutan.

Families traditionally gather for a meal of thup (porridge) at breakfast time.

[2][3] The most auspicious hour for the ablution is determined by astrologers in the service of the Je Khenpo, the chief abbot of the country.

Citizens who are unable to bathe at the exact hour instead often rise before dawn for a brisk morning splash.

Variant romanizations of the Dzongkha name of the holiday include Thrue-Bab, Thrie-Bab, and Thri-Bab.