The phrase "a time when questions" is correct and usable in written English.
It can be used to refer to a specific period characterized by inquiry or uncertainty.
Example: "In a time when questions about our future are prevalent, we must seek clarity and understanding."
Alternatives: "an era of inquiry" or "a period of questioning".
The change at the investment bank takes place at a time when questions have been raised about the business's future role within Barclays.
The new pact with Viacom is an important victory for Hulu at a time when questions are swirling about the sustainability of its service.
The threats against Rubén and Father Tomás — which I first heard about by way of Facebook — came at a time when questions of brutality and courage in Latin America were on my mind.
Mr. Pataki, who was bruised in the recent budget battle and has lost ground in approval ratings, proposed the changes at a time when questions are being raised about the influence of former administration officials on government matters.
Sharpton is where he is today because he has mastered the process of politics and media at a time when questions of philosophy and agenda have become so murky.
The announcement also comes at a time when questions persist about how a giant trading fraud at Société Générale of France, uncovered last month, could have gone undetected for so long.
Mr. de Villepin added, as he has every other time when questioned about a presidential bid, that he was "concentrating fully on my governmental task".
But Adorno, the most brilliant music critic of his age, whatever anyone else says, was writing this at a time when these questions were urgent: in 1938.
The nostalgia for realistic action is, like most nostalgia, a yearning for a time when fewer questions were asked, fewer assumptions were troubled — for the so-called realism that served as an escape from the actual complexities of reality.
It comes at a time when broader questions of racial, economic and cultural division demand an adult tone.
Bowman's departure comes at a time when several questions about Bowman and her department are dogging the agency, according to sources inside the CDC.
