23. Nothing is more common in the Word than for the word 'day' to be used to mean the particular time at which events take place, as in Isaiah,

The day of Jehovah is near. Behold, the day of Jehovah comes. I will make heaven tremble, and the earth will be shaken out of its place, on the day of My fierce anger. Its time is close at hand, and its days will not be prolonged. Isaiah 13:6, 9, 13, 22.

And in the same prophet,

Her antiquity is in the days of antiquity. On that day Tyre will be forgotten for seventy years, like the days of one king. Isaiah 23:7, 15.

Since 'day' stands for the particular time it also stands for the state associated with that particular time, as in Jeremiah, Woe to us, for the day has declined, for the shadows of evening have lengthened! Jeremiah 6:4

And in the same prophet,

If you break My covenant that is for the day and My covenant that is for the night, so that there is neither daytime nor night at their appointed time. Jeremiah 33:20, 25.

Also,

Renew our days as of old. Lamentations 5:21.

In the ancient world cities were nearly nations unto themselves – they existed within walls, with their own laws and customs, generally centered on the common purpose of trade. This is not as much the case in the modern world, but we still tend to divide ourselves city by city in terms of sports teams, accents, music and culture, and still tend to generalize the character of people from other cities. It follows, then, that in the Bible cities represent various doctrines – collections of inter-related ideas about spiritual reality. Such doctrines can be based on anything from the Lord’s true teachings – the New Jerusalem seen by John in Revelation – to the falsity and heresy of Sodom and various cities obliterated by the people of Israel at God’s command. On the most personal level, a city can also represent the natural mind of one person – which makes sense since we each to some extent have our own doctrine and our own set of ideas and beliefs.