These are the white ones that are fragrant. They are not the "traditional" night bloomers that last only the night, and mine lasted a couple of days.
In the olden days in China, poets and intelligentsia held all night vigils watching the blooms open, and then die in the morning, as they lamented the empheralness of beauty. Something along the lines of: time-orders-old-age-to-destroy-beauty
I am feeling philosophical today - must be because I have to write my essay on Color Contrast!