(idiomatic) at any point of time

(idiomatic) A short period of time, typically anywhere from several seconds to several minutes or more. / Used other than figuratively or idiomatically: see one, moment.

(informal) A moment of enlightenment, inspiration or sudden realization.

A seminal moment, in reference to the conversion of Paul the Apostle on the road to Damascus.

The best time to do something, when those involved are in the most workable state of mind.

Synonym of man of the hour

(slang, humorous) An instance of a video gamer doing something offensive, such as saying a racial slur, in a moment of frustration or carelessness.

(chiefly politics, journalism) A moment when a public figure is booed in public; (by extension) a moment when a person or régime previously considered unassailable suddenly looks vulnerable; the outbreak of a revolution

(idiomatic) Stop; wait; hold on. Used to interrupt speech or proceedings so that one can make a comment or query.

(slang, ethnic slur, offensive, African-American Vernacular) A moment in which emotion or ignorance overpowers one's rationality, causing an outburst of irrational aggression.