The car is equipped with distributorless ignition and the ignition timing is locked at one position and cannot be changed.
If it's the timing belt your referring to, here are the instructions.
Fig. 2: Exploded view of the timing belt cover mounting and related components — 1998–01 KIA Sephia
NOTE: Do not move the crankshaft or camshaft once the timing marks have been correctly positioned.
Fig. 3: Crankshaft sprocket timing belt alignment mark — 1998–01 KIA Sephia
Fig. 4: Camshaft sprocket positioning for timing belt installation — 1998–01 KIA Sephia