Formal:
* مساء الخير (Masaa el-kheir): This is the most common and formal greeting, literally meaning "evening good." It's appropriate for any time after noon.
* صباح الخير (Sabah el-kheir): While technically meaning "good morning," this is sometimes used for a very formal greeting in the afternoon, particularly in older generations.
Informal:
* نهارك سعيد (Neharak sa'eed): This means "have a good day" and is a more informal but still polite way to say good afternoon.
* afternoon (Mas'aa el-kheir): This is a more casual and friendly greeting, often used among friends and family.
You can also use a more direct translation:
* ظهر سعيد (Zahir sa'eed): This literally translates to "good afternoon."
It's best to observe the context and the level of formality of the situation before choosing a greeting.