until

un|til [ ən`tıl ] function word ***

Until can be used in the following ways:

as a preposition (followed by a noun):

She continued to get a salary until the end of March.

as a conjunction (connecting two clauses):

I stayed there until he arrived.

1. ) happening or done up to a particular point in time, and then stopping:

Baker is expected to be here until the end of the week.

I was employed by a manufacturing company until 1999.

You'll just have to wait until they call your name.

up until: Up until now, everything in Katherine's life has been taken care of for her.

2. ) continuing as far as a particular place:

Keep on the bus until the big supermarket, then get off and turn left.

Perry was leading the race until the final bend.

not (...) until

used for stating the point at which something finally happens, becomes possible, or becomes true:

She went to Felix's apartment at midday and did not come out until late in the evening.

They didn't see each other again until the fall.

I cannot comment further until I have all the information.

It was not until six o'clock that we got the first reports of trouble.