cestrum

White Chocolate Jasmine, Inkberry, Day jessamine. Unlike Night blooming jasmine (Cestrum nocturnum), this one is most fragrant during the day: flowers have very strong chocolate scent, as good as fragrance of famous Portlandia.

Night blooming jasmine. Garden favorite - the sweetest fragrance at night is intoxicating.
One of the most famous and desirable fragrant plants. Flowers are pale yellow to white, open at night and stay extremely fragrant until sunrise. Aroma is sweet, pleasant and intoxicating. These flowers are widely used in India and other countries of South Asia for perfumery, medicinal applications and in religious ceremonies. Best location will be near driveway, window or entrance, where the magic fragrance can be appreciated.
See video about this plant.