He was working until late at night.

He is clearly a night owl, working late into the night and sleeping late into the morning.

I heard that she works in the nightlife industry.

I made new friends in the Seiya chat room.

We made a lot of memories during these thousand nights.

Senya is my best friend.

The result of the game is fifty-fifty.

The first day of the month is the beginning of a new month.

I will hold my birthday party on the fifth day of the month.

I buy daily necessities at the supermarket every week.