知らぬ間に日はとっぷりと暮れていた。の英語

Night had completely fallen before we knew.

The days lapsed away.

Meanwhile, night had fallen [closed in] completely.

The next morning, the snowman had completely melted.

The next morning the snowman had completely melted.

It became dark before I knew it.

The light became weaker and weaker.

The sunlight gradually decreased.

It looked like the sun was going to set.

In the meantime it became completely dark.

It had gotten dark outside then.

The twilight merged into darkness.

The setting sun made the shadows longer.

It was getting dark.

It was getting dark.

The sky suddenly began to darken.

The light suddenly went out.

All at once the lights went out.

Suddenly, the light went out.

Suddenly the light went out.

All of a sudden the sky became dark.

All of sudden the sky became dark.

Japanese flags were flying.

All of a sudden the sky became dark.

As time went on, the sky grew darker and darker.

All of a sudden, all the lights went out.

Suddenly all the lights went out.

All of a sudden all the lights went out.

After a while it grew dark.

After a while, it grew dark.