Which is the longest day in the year? A 21 July B 21 June C 21 September D 22 November Which is the longest day in the year? Correct Answer 21 June Bissoy MCQ Team May 27, 2023 সাধারণ জ্ঞান আন্তর্জাতিক দিবসসমূহ Rajshahi Krishi Unnayan Bank Rajshahi Krishi Unnayan Bank - Senior Officers - 08.01.2010