I don't know of  the date the 26th November 2008 being of any particular significance except that the Mumbai bombing was on that date.
Mark calculated 24th July 2012 to be the rapture date, my personal belief is that the tribulation has not yet begun and will commence after the rapture has taken place. Not every one believes this but I firmly believe that we must be raptured before the tribulation starts because its the Holy Spirit dwelling in us christians that is holding back the time of wrath 1thess 5v9 We are not subject to wrath.

Ibelieve we are in the last week of years which terminates on feast of trumpets 2016. have a read of my husbands post "Nearly there" he has explained things in greater detail.
Hope this has been helpful.

God Bless

Veronica N