[supercat]

Exactly. I don't see what is so hard to understand about this.

The terms "day", "morning", and "evening" presuppose the existence of the Sun, and refer only to local, rather than global phenomena. As you read this, it is day somewhere and night somewhere else. In twelve hours time, most of the places that are now in "day" will be in "night", and vice versa, though some places' days and nights will last for months.

How can the term "day" have any modern meaning at all before the creation of the Sun? And even after the creation of the Sun, how can it have any global meaning?

[Jorge]

God created the light and divided the light from the darkness, and the morning and the evening were the first day.

Exactly the same definition we have of a 24 hr day.

Try reading Genesis..it will answer many of your questions.