Either when it is visibly darkening outside, or its usually acceptable after 5pm (end of the work day).
In Bahamian Creole, you can say "Good Day" as "Good marning" or "Good afternoon" as "Good evening".
Well you could say "Good Morning.", "Good Evening.", "How are you?", and "How was your day?"
Good day can be said any time during daylight hours. You can also say 'good morning' in the morning or 'good afternoon' in the afternoon or 'good evening' in the evening. However at night you may not say 'good night' unless you are going to bed. As a greeting at night you should rather use 'good evening'.
Good evening or good day
good evening
To say "good evening" in Tagalog, you can say "Magandang gabi."
In India, you can say "Namaste" which can be used throughout the day as a form of greeting. For good evening specifically, you can say "Shubh Sandhya" in Hindi or "Subho Sandhya" in Bengali.
Morning is the early part of the day following sunrise, afternoon is the middle part of the day, typically from noon until evening, evening is the time before nightfall, and night is the time after sunset until sunrise the next day.
"konban wa" lit. "evening is" is a phrase used to say, "good evening" in modern day Japan. It was initially part of a longer sentence but has become recognized as this simple phrase.
In Maori, you can say "morena" which means good evening.
You can say "Good evening" in Farsi as "Asr bekheir" or "Shab bekheir."
"Good evening" in Ilocano is "Naragsak nga rabii."