Tetsuko is my best friend.

He continued his work overnight.

He is always working at night.

The sound of the night rain hits the window glass.

The sound of the night rain is hitting the window glass.

What should I make for supper tonight?

During the polar night, the sun does not rise even once.

An owlet moth is an insect that is active at night.

He finished his work and went home at midnight.

In Hinduism, Yama is considered the god who judges the souls of the dead.