"the time concerned" is a grammatically correct and commonly used phrase in written English.
It refers to a specific period or duration that is the focus or subject of the sentence. Example: "The time concerned for completing the project has been extended by two weeks." In this sentence, "the time concerned" refers to the designated time frame in which the project is expected to be completed.
Most of the objections at the time concerned human rights, labor and the environment.
The only side-effect noted at the time concerned his diet.
Much commentary at the time concerned whether Mr. bin Laden's late adoption of the Palestinian cause was merely opportunistic.
I objected to the deal at the time, concerned that Comcast would have strong incentives to favor its own programming over other content creators' offerings, and then restrict access to its own programming by competing distributors.
Even with an increment of the initial reversal distance, SWA is all the time concerned with the enumeration of k-traces (1 ≤ k ≤ w).
What is now the library was the stately Town Hall/Police Station/jail, built in 1906 and falling apart by the time concerned citizens banded together in the late 1980's to save it.
I then go on to identify what I think is a more important long-term issue that was not covered at the time, concerning the impact of Rothschild's reforms on the ability of Government departments to access expertise.
Dart (1925) then made a series of observations that radically challenged the conventional wisdom of the time concerning human evolution.
Lakatos's answer is that the predictions concern basic value judgments made by scientists at the time concerning the rationality and irrationality of certain episodes.
On July 15th, the lead story in the "Times" concerned some rather modest fluctuations in the value of the dollar against the mark and the franc.
The Aug. 1 article in The Times concerning the proposed Irwindale plant angered me.
