OK - A very different (and a bit the same) event happened to me on Sunday morn. 
My time/date jumped forward in time 3 days, 7 hrs and 25min approx!! 

I then set it manually to correct... and it woke me up an hour early (alarm on repeating, wellington,  etc). But each time I set to automatic...  its 3 days etc in the future. This really does my head

The nice-but-not-knowing lady at vodafone said (in a very nice-but-knowing voice) "it is set to the wrong time zone. Wellington, not auckland!! " ... OK ... so Wellington is 3 days in the future is it? Is that how they make those amazing decisions that keep our country at the cutting edge of world affairs - he says dripping with something (probably sarcasm but likely tinged with insomnia and iphone  induced frustration). I digress. That didn't fix it.

I use iOS4.1 , 3GS, vodafone

right now , set on automatic, its saying its "Friday 1 Oct at 12:18pm" - its really having a laugh isn't it?

Did this stupid, stupid 3 day future thing happen to anyone else in the world. The Forums i have read say not... I feel so alone (apart from wife, 2 arguing kids, 2 hungry fat cats -who don't understand my techy love/loath world - im so alone) . 

Help anyone? 

PS I'm very sure I'm doing (or not doing) something very very stupid/simple/obvious but need extra brains to point this out please. I tend to do that so my wife lovingly points out :)