Up to the time that and Up to

Up to and up to the time that are semantically related. In some cases you can use "Up to" instead the phrase "Up to the time that" as a conjunction or a preposition.

Up to adjective - Busy or occupied with.

Up to the time that and up to are semantically related. You can use "Up to the time that" instead the phrase "Up to" as a conjunction or a preposition.