Offhand, I can't think of any specific verses within canonized scripture. Although some members have taken that verse to describe creation in a 11,000 year timeframe (ie Genesis 1 took 7,000 years) it is not official doctrine (and I, obviously, don't).
However, I do know it has been said (I don't remember where) that the way we perceive time in mortality is not the only way to do it; and existence in general has existed and will exist eternally, without beginning or end. Although, of course, the observable universe is only a few billion years old.
A lot of this comes from what is known as the King Follett Discourse, which Joseph Smith gave in the early 1840's at the funeral of the aforementioned Mr. Follett. (King was his first name; on a side note, the first name of one of the earliest professional "anti-Mormons" was Doctor.) Which, arguably, is not usually the point of eulogies, but apparently no one complained. Certainly not the guest of honor.