@Psalm 90,4
A thousand years in your sight
are like a day that has just gone by,
or like a watch in the night.
Seventy years, a puny human lifespan this is contrasting with God, contain 25,550 days (ignoring leap years), putting God’s timespan on a scale of tens of millions of years - and in fact, that is just the lower limit, seeing as a thousand years are also compared with a watch of the night, that is, one twelfth of the time between sunset and sunrise - a portion of time that varies over the course of the year (and also with geographic latitude), but is shorter than a day.
So yes, Deep Time is in the Bible. Also, the two incompatible times make it evident that this passage, and thus at least some parts of the Bible are not intended as statements of literal absolute literal facts (and yes, Creationists have used the Psalms, unambiguous poetry, as a source of Biblical “facts”). Note, by the way, that accepting this passage as metaphorical does not actually do anything to resolve, as the imagery is unambiguous - this passage makes no sense if the world is only a few thousand years old (and it also suggests that God is not timeless).
Finally, this is one of those Psalms that are very Lovecraftian - it is all about the powerlessness of humanity against the inscrutable will of an incomprehensibly vast and ancient being that could never be understood, only hoped to appease.