He is interested in diachronic linguistics studies.

He is interested in synchronic linguistics.

My class starts at eleven o'clock.

I eat lunch at twelve o'clock.

He has been committing misdeeds for many years, but finally the time for repayment has come.

Greenwich Mean Time is the standard that determines the time of the world.

He likes to take a walk in the park at dusk.

There are many poor people in this area, and life is tough.

Be careful, there are bedbugs in the beds of this hotel.

She bought a new sukumizu.