The phrase "agreement at that time" is correct and usable in written English.
It can be used when referring to a specific agreement that was made during a particular period in the past.
Example: "The terms of the agreement at that time were favorable for both parties involved."
Alternatives: "accord at that moment" or "settlement during that period".
The two sides appeared close to an agreement at that time.
We gave her a duplicate, and fortunately we also had her sign a version of the winner's agreement at that time, which also covered the original, should it ever surface".
Exceptions will be made only for students who demonstrate, on entering the program, that their language preparation has been unusually weak; these students will reach an agreement at that time with their advisors about the maximum time they will take to pass the classical language exams.
For whatever reason, Wells Fargo did not push for its own agreement at that time.
The tenants filled out a pet agreement at that time.
The temporary nature of the agreement all but ensures another budget battle this winter, unless Congress drafts a new agreement at that time.
6 Nevertheless, they made these agreements at that time as stated and removed Sextus from his priesthood as well as from the consulship to which he had been appointed, and granted themselves the leadership for another five years, since the first period had elapsed.
"It is now clear to me that this potential purchaser is unable to fulfil the terms of that agreement at this time," said chairman Jeremy Peace.
"But it is now clear to me that this potential purchaser is unable to fulfil the terms of that agreement at this time". Liverpool Ladies and England midfielder Fara Williams has been ruled out of action for a couple of months with a hamstring injury.
And it's not surprising that the companies reached an agreement at this time.
With expectations soaring that a decade of thus-far fruitless negotiations might finally be closing in on a preliminary agreement, Kerry told reporters at the Intercontinental Hotel in Geneva that there is "not an agreement at this time".
