What are the controls and limits for visiting one's wife on a day that is not her appointed day? Is it permissible to greet her and her children, to kiss her, and to sit with her, or is it restricted to standing at the door? And is it permissible to visit at night?

The fundamental principle is that the wife whose turn it is has her day, and her night follows it. It is not permissible for the husband to enter upon a wife whose turn it is not, during the day, except out of necessity, nor at night, except out of dire need. It is permissible to greet her and inquire about her well-being without entering.