!APRIL April is the fourth month of the year in Gregorian calendar. It has 30 days. It derives its name from 'opening' of spring buds. The Roman name for this was Aprilis, which is turn was based on the Latin word aperio which means 'open'. Thus, APRIL, is the month of "opening of the light in the days, and of the life of the leaves, and of the voices of the birds, and of the hearts of men."