Communication internally has to be something that takes on the highest priority.
I know that some alters only want to hide away. Other alters like to "hog" the "air-time". But it is important to try to bring all the alters into one "room" as much as you can. Allow yourself to mentally visualize that "safe" room. Every alter there is to be respected and has a voice. And they are to respect all the other alters.

Once you learn how to encourage the alters to come together in this safe way, they will start to be able to rely more on each other for some of the basic information needs - such as what time is it and where are we.