Crescent Moon Emoji is a crescent moon, as in its Waxing Crescent phase. This emoji depicts the moon as a thin, golden crescent, curving to the right and not displaying the remaining outline of the moon.
It may be used for the moon more generally and saying good night.
As of March 2019, sending crescent moon emoji over Facebook Messenger activates dark mode.
See also 🌒 Waxing Crescent Moon Emoji Png.
Google’s moon emoji once resembled a waning crescent moon, Twitter and Facebook’s moons were previously silver.