Is it true that moonflowers only bloom at night?

I think these flowers look absolutely beautiful and the fragrance is amazing. Also is there any other flowers that only bloom at night?Is it true that moonflowers only bloom at night?
There are two plants that are called moonflowers, one is the datura, which stays open in the daytime with a huge white trumpet-shaped flower, andis fragrant in the evening. The other is a morning-glory type vine with a huge, white fragrant flower that blooms at dusk. I plant those with morning glories and they bloom together in the morning, before they both close about 10am or so.





Brugmansia, a tropical tree often grown in pots, blooms in the day but is fragrant at night, to attract the moths that are polinators.





Four-O-Clocks, a perennial that comes in many colors, blooms in the late afternoon and is very fragrant.








There are tall trumpet lilies, like Black Dragon, that open up in the daytime but release their fragrance at night, perfuming the air for yards around.





The eveing primrose opens at dusk. You can watch them open as they unfurl and then suddenly pop! open with an audible snap.





The night blooming cereus, Queen of the night, blooms only at night, usually after midnight.





There are several more. Google night blooming plants for more information.Is it true that moonflowers only bloom at night?
Generally speaking, they do bloom only at night. You may find some that are still open in the morning, but they will usually fade as soon as they get any real amount of light.





I have a night-blooming cereus, and the blooms are an absolute spectacle!
There is one flower or rather a cactus which bloom only at 9'o clock in the night. It bloom flowers which are as big as a palm and is white in flower.





Also dragonfruits cactus bloom only at night, both belong to the same group.





They will only bloom at 9'o clock in the night and wither as day arrive.
yes the only bloom at night. another variety is the pink moon vine similar to the moon vine only the flowers are slighty pink and it is very cold hardy.
Yes they only bloom at night...the hummingbirds love them too ....but they are poisonous.
there are also a moon flower that is a type of morning glory.. that blooms at night....it is a vine though


there is also night blooming jasmine which smells very good!