(one's) day in court

The opportunity to voice one's complaints or explain one's actions. This phrase does not have to refer to an actual court appearance. You'll get your day in court, but, for now, let your sister tell her side of the story. I'm glad I'm finally getting my day in court and can refute those slanderous claims. When I get my day in court, the evidence will show that I did nothing wrong.

someone's day in court

Someone's day in court is the time when they have the opportunity to give their evidence about something, usually in a court of law. We are looking forward to our day in court, when the mountains of evidence we have collected will be displayed to the jury. He will have his day in court, we hope, and then all of us will know what really happened.