Noun moment of truth
Synonyms: A-day, D-day, D-day, H-hour, appointed hour, appointed hour, climax, contingency, countdown, crisis, crisis point, crossroad, crossroads, crunch time, deadline, emergency, exigency, jumping-off point, juncture, moment of truth, pinch, pivotal moment, start time, strait, target, target day, the time, turning point, turning point, vital moment