This happened last year after the shift from daylight savings.
Probably just a network stuff up, it shouldnt be the iphone.
97 WRX AWD
Tein Coilovers + EDFC Dampener Control - Whiteline heavy duty Rear sway bar - Whiteline Droplinks front and rear
Turbosmart dual stage boost controller
IHI VF34 Turbo - XForce 3inch TBE - Oversized TMIC - Unichip PiggyBack ECU
PPG Straight cut 1st & 2nd, Slight helical 3rd & 4th and standard fifth - HD Clutch - custom braided clutch line
02 wrx 4pot front calipers - DBA500 two peice slotted rotors - Steel braided Lines
BP98 safe tune @ 171.8awkw
My Iphone 4 and my wifes Iphone 3gs both updated fine, and no changes to alarms etc, oh both are with optus.
but previously Being with Telstra, but not with Iphone I had nothing but trouble with the auto update the mobiles I had on telstra never updated correctly mine and my wifes phone both were motorola V3 always updated around a week early for some reason but never on the same day, for example mine would update 4 days before daylight savings and my wifes would update 2 days before daylight savings. and same thing happened when we changed to the V3xx all were on telstra, I also try disabling the auto update, but it still tried changing the time early.
when we first changed to optus we both got the Nokia E72 they both updated fine. and now the Iphone's both worked fine.