The Meaning of Buenas Dias in Spanish

Buenas days afternoon. And bwenos noches in the evening, exactly. So benos means good and das means morning. In spanish, of course, there are feminine and masculine ninds. That's why we say bena snutches wat the second hector,. What's mascuin about the day and feminine about the night? Doesn't make any sense? We'll explore this in detail later on.