Literal Translations:
* Good day: This is the most literal translation, but it's too formal for most everyday situations.
* Good afternoon: This is closer in meaning, but still slightly formal and isn't accurate for all times of day.
Contextual Translations:
* Hello: This is the most common and versatile translation, suitable for almost any situation.
* Good morning/afternoon/evening: These are more specific and can be used when appropriate, but are not as common as "hello."
* Nice to meet you: This is a good translation if you're meeting someone for the first time.
Nuances:
* Time of Day: "Konnichiwa" is used from late morning to early evening.
* Formality: It's a neutral greeting, suitable for both formal and informal situations.
* Context: The best translation will depend on the specific context of the situation.
In summary, "hello" is the most widely used and versatile translation for "Konnichiwa." However, you can use other translations based on the time of day, formality, and context of the conversation.