Forum:2009 or 2008?

This wikia refers to the events in "The Stolen Earth/Journey's End" as The Dalek Invasion of 2009. However, in the Doctor Who universe (specifically in The Waters of Mars), it is referred to as The Dalek Invasion of 2008. Should the timeline of the Tardis Index File be changed to be the same as the Whoniverse? I know this issue comes from the fact that Rose was missing for a year in Series 1, but could the events in Series 1 (episodes 4 on onwards) and Series 2 have taken place in the same year? Thoughts on this conroversey?