In short, the invariant meanings of these signs are:
III. Microlevel Data
A. Minimal Pairs
(1) Pollard would not be freed until a direct request is made by Rabin.
(Jerusalem Post, 25.7.93) (until = condition/consequence), (till = duration)
(2) He won't die until his heart stops beating.
(until = condition/consequence) (till = duration)
(3) He will not bury her until she is officially considered dead.
(until = condition) (till = duration)
(4) Wait till the cows come home... (duration) (until = and then what?/consequence).
(5) Wait till hell freezes over... (duration) (until = and then what?/consequence).
(6) I will love you till the seas run dry. (till = duration) (until = condition/consequence).
(7) "for richer, for poorer, in sickness and in health, till death do us part"
(until = condition/consequence).
(8)(a) "You better wait until the shelling is over," the major said over his soldier.
(until = condition) (Ernest Hemingway, A Farewell to Arms, p.42).
(8) (b) "Alright, wait till I get cleaned up." (till = duration) (p.17)
(9)(a) They stay here until they can make enough money to move into the city.
(until = condition) (Amos Oz, The Land of Israel, p.28).
(b) Others come and gather round till it resembles an outdoor park debate.
(till = duration) (p.32).
(10)(a) He was determined to push forward till he reached his sister.
(till = direction/goal) (Franz Kafka, Metamorphosis, p.121).
(b) Gregor, attracted by the playing, ventured to move forward a little until his head was actually in the living room.
(until = consequence/goal) (p.120)
B. Non-Free Variation
(11) He worked from morning till night until he was too tired to keep his eyes open.
(12) I am bringing a Ron Bennett with me to work with me on my house. I don't think I will have anything for him to do until May at the earliest, but he doesn't want to hang about England till then.
(13) "Well, he wasn't always a butler; he used to be a silver polisher for some people in New York that had a silver service for two hundred people. He had to polish it from morning till night, until it finally began to affect his nose." ... "Things went from bad to worse," suggested Miss Baker. "Yes. Things went from bad to worse until finally he had to give up his position." (F. Scott Fitzgerald, The Great Gatsby, p.20).