When Does the TV Show "Smallville" Season Two (2002) Take Place?
"Smallville" season two is a superhero television series showran by Alfred Gough with Miles Millar [adapting "Superman" #113 (1957) by Bill Finger] that premiered September 24th, 2002. So when is "Smallville" season 2 set?
It takes place on an alternate timeline of the fictional DC Films Universe in the years:
We know this because season two episode one "Vortex" picks up immediately after the previous season, "Smallville" season one (2001), ended in 2002 AD.

2002 AD - 2003 AD
We know this because season two episode one "Vortex" picks up immediately after the previous season, "Smallville" season one (2001), ended in 2002 AD.
During season three episode one "Exile" (2003), Martha Kent says, "It's been 3 months. We've been searching all that time." implying the end of this season season two episode twenty-three "Exodus" (2003) is 3 months from the beginning of the next, season three, which takes place in 2003 AD. So this season ends during or before 2003 AD.
It is the third-earliest chronological TV series in the DC Films Universe timeline (a chronological first to feature Kal-El/Clark Kent/Superman) and can be watched either at its timeline point or entirely separately.

