時とは、永遠の一部分である。の英語

Time is a certain fraction of eternity.

He has had his day

He has seen his best days

He has seen better days.

Wherever, wherever I am.

Sometimes I feel lonely about that.

Time passes quickly.

Time is going by very quickly.

Time crept on.

I'll know someday.

Someday, I'll know.

In that case, we shall take measures accordingly.

I'll just cross that bridge when I come to it.

once in a while

That depends （on circumstances）.

Things are not what they used to be.

There is an everlasting tranquil time flowing there.

Sometimes telling the truth hurts.

time is endless

When the time comes, that will take care of itself.

We'll think about it when the time comes.

Let's cross that bridge [hurdle] when we come to it.

Every second counts.

It is common knowledge that time is not unlimited.

at long [short] intervals

Time runs on.

It’s a solemn moment.

Time moves slowly there.

Time [The hours] slipped by [past].

There're times when we're dispirited.