The JEE mains exam is usually conducted in two sessions, one before the commencement of exams (January) and one after the board exams are over, i.e in the month of april. The board results are normally announced later, ie after the conduction of JEE somewhere in late may or june. This was the regular schedule of these two events, but before COVID.

This year, the results were announced earlier than the conduction of jee mains examination. But in 2020, everyone will be a bit better prepared (about the pandemic) so you can expect the schedule returning to normalcy, i.e board exams in March-April, JEE mains in January as well as April, and then the board results in May-June.

Dear aspirant,

According to your question and taking into consideration that you want to know about the conducting time of jee mains.

As per my knowledge there will two times when jee mains will be conducted which means one will be before your 12th exam and one will be after your 12th exam.

But this year it can delayed as due to covid-19 pandemic.