The Saint Nicholas in a Day Church (Biserica Sfântul Nicolae Dintr-o Zi) is a Romanian Orthodox church in the center of Bucharest, which is dedicated to Saint Nicholas.
According to the legend of the church, it was first built of wood by the postman Neagu in the early 17th century and was constructed within a single day. An alternative explanation for its name refers to a tradition where the consecration took place on the exact same day a year after the start of its construction.
Later the church and its surrounding land came into the hands of Maria, the wife of Prince Constantin Brâncoveanu, and in 1702 she rebuilt the church from stone. In 1825, the church was damaged by a fire after which the walls were repainted and the roof restored with tiles. In the early 19th century the church had gotten in a very poor state and in 1915 the authorities proposed to demolish it. However, instead of demolishing it, repairs were carried out and the church was listed as a historic monument. Further reconstructions were carried out in 1958 and 2005.
The Saint Nicholas in a Day Church has a rectangular shape with a central bell tower above its narthex and measures a length of 26 meters, a width of 8.5 meters, and a height of 19.2 meters. The entrance of the church is via a portico with arches resting on massive brick columns. In 2015 the portico area has been closed off by glass for protection. Above the entrance is a painting of Saint Nicholas from 1702.
