(غدآ: Used in formal Arabic) and ( بكرة: Used in many dialects in the Arabic language)

Morning and evening

Same meaning However “ بكرة" ، you can not use it in formal writing. Usually, we use it in the normal life .... “ غدا " , it is formal .

there is no difference

(غدآ: Used in formal Arabic) and ( بكرة: Used in many dialects in the Arabic language)