What happens when a Multiple 'loses time'?
This is where someone in the body takes Front, but either can't or won't share the data about what they do with the other people (or information-pool) in the system. In effect, this causes a blackout for an unspecified period of time, while whoever is in charge of the body is doing something which remains a mystery to others in the group.
It might be as simple as A taking a long bus ride, during which B comes up front, A doesn't realize it, but toward the end of the trip A returns to the front to find they're near the end of the journey and that a number of hours have gone by that they have no recall of whatsoever.
A more extreme example is the same bus ride, only A returns to the front weeks or months later in an unfamiliar city, wearing unfamiliar clothes, with people calling him by a different name, and no clue how he got there. (This is an extreme, almost cliched example; it very rarely occurs in real life; multiples online sometimes joke about it as the "Gloria in a Ballgown" story.)
It is possible to be functional as a multiple even if you lose time; if you know this is a concern for your system, it becomes very important to leave notes, for example. A good number of multiples never lose time at all, or only in an ordinary way (just like someone absorbed in study doesn't realize how "quickly" the time flew by). But having regular, serious long-term blackouts can be harmful to the system as a whole, and it's important to develop a protocol.
Thus, it becomes important to establish and enforce "house rules", to develop co-awareness if possible, and to work toward a high level of trust and knowledge of the people in the system.
Time is never "lost." It just belongs to someone else --Doltaghey House