Up to the time of and Up to

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

Up to adjective - Busy or occupied with.

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