YOU SAID:

Once upon a midnight weary

INTO JAPANESE

深夜の疲れたときに

BACK INTO ENGLISH

When you get tired late at night

INTO JAPANESE

夜遅く疲れたとき

BACK INTO ENGLISH

When I am tired late at night

INTO JAPANESE

夜遅く疲れたとき

BACK INTO ENGLISH

When I am tired late at night