what is this canon event?

I'm currently giving 10th board exams and every senior I talk keeps saying ki 11th mai aake dekhna. Even my own sister keeps saying ki 11th mai dekhna dosto ke saath kya hoga. They all laugh while repeating this same thing again and again. So my question is that is 11th really that hard or something else is gonna happen ya fir mere maje liye jaa rhe hai? 😭😭