No, the JEE Main exam will not be in December. As per the official notification released by NTA, the entrance exam will be held in the months of January and April. The exam will be held in two shifts per day- forenoon session (9:30 am to 12:30 pm) and afternoon session (2:30 am to 5:30 pm). The exam will be conducted in a total of eight sessions. Keep a close eye on our website to know the latest information about the exam including important JEE Main exam dates, eligibility criteria, admit cards and more.