— Twitter Support (@TwitterSupport) September 6, 2017
Night mode have been available on Twitter for iOS and Twitter for Android for more than a year now and I have been using it since it came out.
Here are steps on how to enable night mode on twitter.com;
To enable night mode via twitter.com, click on your profile photo, then select Night mode from the drop-down menu. To disable night mode, simply click on the Night mode setting again.
I’ve setup my profile to use the blue links and a black keyboard for my header photo, so the night mode compliments the theme of my profile.