New Light -
Page 7-8 paragraph 9,10:
Jehovah has, however, revealed essential details about his works. For instance, the Scriptures inform us that God's spirit was active on the earth aeons ago. (Read Genesis 1:2) At that time, there was no dry land, no light, and apparently no breathable air at the earth's surface. The Bible goes on to describe what God did during a series of creative days. These are not 24-hour days but are epochs.
Page 9 paragraph 13:
After aeons had passed and God had produced innumerable animate and in-animate works, the earth was no longer "formless and waste". Yet, Jehovah had not finiished using his spirit for creative purposes. He was about to produce his highest earthly creation. Toward the end of the sixth creative day, God created man...
According to these two paragraphs the earth had existed for aeons...which the WTS has allluded to before. Now, though, they're implying that the entire creative process took aeons, not just 7,000 years a day.
What's an aeon?
Although the term aeon may be used in reference to a period of a billion years (especially in geology or astronomy), its more common usage is for any long, indefinite, period of time.
1. an immeasurably long period of time; age
2. (Astronomy) a period of one thousand million years
1: an immeasurably or indefinitely long period of time :age
2: a very large division of geologic time usually longer than an era b : a unit of geologic time equal to one billion years
I think we get the point...
The WTS has taken to subscribing the time period of aeons to the creative days...an immeasurable amount of time. The 7,000 year creative day is now defunct.