Night mode can be used in a day!
See here, you can use night mode at day or at night, But it is only a feature which is seen in various apps and websites by the name of dark mode. Some people know it as night mode. But the meaning of it is not only to use you only at night but also you can use it at day time daily basis or any time it is depends on you if you like it dark theme then you can use it anytime. it has not a meaning that night mode it has a Real meaning that is dark menu or dark theme.