What is how to say hello in japanese?

Here's how to say "hello" in Japanese:

The most common way to say hello in Japanese is こんにちは (Konnichiwa). It is generally used during the daytime, from morning until evening.

For morning greetings, you would say おはようございます (Ohayou gozaimasu).

In the evening or at night, you can use こんばんは (Konbanwa).

There is no single "hello" for all times of day like in English. You choose the greeting based on the time of day.