Allow Some Roles to Log In Only During Office Hours
Lets users in chosen roles, such as shop managers or support staff, log in only on working days between set hours in the site's time zone.
Snippet Library
Login snippets for WordPress
Snippets for the WordPress login page and the way people sign in: your logo and colors, a custom redirect after login, friendlier error messages and limits on who can get in. For anyone who wants a branded, safer login without another plugin.