English question - urgent

(1)Time will tell is an idiom. meaning the right choice. It is a group of words with a meaning of its own that is different from the meanings of each separate word put together:-"Under the weather" is an idiom meaning "ill" at home. Literary it is a style of expression in writing,speech,or music, that is typical of a particular group of people.Idiomatic expression is a typical of the natural way in which someone using their own language speaks or writes.eg:-After many years in London,her English is fluent and Idiomatic!
(2)Time is Money is a proverb,meaning a short well-known expression statement that contains advice about life in general.The proverbial is used when describing something using a well-known expression well-known by a lot of people eg:_It was a level of earning which became proverbial.Hence a proverbial saying is "Time is Money".