Those hwo would argue (and apparently look down hteir noses at htose who do not agree with hteir itnerpretations of God’s word) that Day Meant ‘long ages’ are forced to do so by ignoring certain key elements in God’s word, and ignoring grammatical context.
“In Exodus 20:11, He said that in “six days the Lord made heaven and earth, the sea, and all that is in them and rested on the seventh day.”
“The length of the “days” of creation in Genesis has involved a major controversy in Biblical interpretation among evangelicals for over 150 years. Many have sought to redefine the term in light of the naturalistic presuppositions of modern scientism. Therefore, let us attempt, honestly, to examine the evidence from Scripture.
The communication of language is through words and their use. We must ask ourselves why Moses was using the words he did, and not other words. What is the meaning he was trying to communicate to his original audience and to us, as well? Why did Moses use the word “day” and not the more generic term, “time”? Is there any significance to the repeated use of numbers in the account (”first day,” “second day,” etc.)? Why are these “days” bounded by the terms, “evening and morning”? As we examine the text of Genesis 1, answers to these questions become clear....
Those who argue that the word “day” means “long age,” point out that the Hebrew word, yom, can have a number of meanings, only one of which is “day of 24 hours.”1 They further seek to strengthen their position with the use of Psalm 90:4 and II Peter 3:8, comparing a day to a thousand years. Both of these verses, however, are simply using figures of speech (similes) to show that God is not constrained by the same time parameters as are humans. These verses are really irrelevant to the discussion of the meaning of “day,” in Genesis 1.
The use of a number with the word “day” is very illuminating. This combination occurs 357 times outside of Genesis 1. The combination is used in four different ways, but each time it is used, it must mean 24-hour periods of time. If the combinations had been intended to mean long periods of time, both the texts and contexts then become meaningless. A typical verse is Genesis 30:36: “And he (Laban) set three days journey betwixt himself and Jacob.” God frequently issued commands that the people were to do or not to do certain things on a given day. This use occurs 162 times. A good example is Exodus 24:16: “And the glory of the Lord abode upon Mount Sinai, and the cloud covered it six days, and on the seventh day He called unto Moses out of the midst of the cloud.” These are the most typical uses of the word “day” with a number. Four times the terms are used to show a starting point. Ezra 3:6 says, “From the first day of the seventh month they began to offer burnt offerings unto the Lord.” A number may also be used with “day” to convey an ending point. An example is Leviticus 19:6: “It shall be eaten the same day ye offer it, and on the morrow: and if ought remain until the third day, it shall be burnt in the fire.” It would appear, then, that whenever the Old Testament uses a number with the word “day,” it means a 24-hour period of time without any demonstrable exception....
The meaning of the term “day” must be seen in conjunction with the use of “evening” and “morning.” Those who would argue that the days are long periods contend that these terms can have figurative meanings.12 But what is their meaning in the context of Genesis 1? We must ask ourselves, how would the people have understood these terms “evening” and “morning?” Is Moses, and by extension, God, trying to deceive us by not telling us the truth about the length of the “days?” The Old Testament records 38 times when these two words are used in the same verse. Each time they occur, the meaning must be that of a normal day. Here are a couple of examples to illustrate the point: Exodus 16:8 says, “And Moses said, this shall be when the Lord shall give you in the evening flesh to eat, and in the morning bread to the full.” Also Exodus 18:13, “and the people stood by Moses from the morning until the evening.” All the other occurrences are essentially the same. So then, it would appear that when the words “morning” and “evening” are used in the same verse, they must refer to a normal day.
http://www.icr.org/articles/view/288/306/