Duskgender

Duskgender is a gender which is more intense at dusk, fading away throughout the night. It can be considered a subset of genderflux.

It was coined as a counterpart to dawngender.

History and Flag
The term and flag were created by Tumblr user kyressin and their friend Hatch on January 25, 2018, as a counterpart of the preexisting dawngender definition and flag.