'Night' in the Bible

Go, gather together all the Jews that are present in Shushan, and fast ye for me, and neither eat nor drink three days, night or day: I also and my maidens will fast in like manner; and so will I go in unto the king, which is not according to the law: and if I perish, I perish.

On that night could not the king sleep; and he commanded to bring the book of records of the chronicles, and they were read before the king.