Time and date...

Here's a decent link for fixing iphone time issues:
iPhone Displays Incorrect Time

you go in setting and change time and date after half an hour any massage geting related time or is internet connectivity contineu or any time related sofware is instal which sync time automatically via internet

Menu -> Settings-> Initial setup -> Time and date please stop reposting the same question when it has been answered

Press MENU/OK to display the menu. Use up/down to select Setup. Press right to display the Setup menu. Select Date/Time. Use left/right to select a field, up/down to change it.

press and hold the # key. Takes you in and out of silent/vibrate mode.

the time and date should set it self when you turnit on, as long as the unit was designed for use in your area then it should set to the right time.

To change the date select:

menu, settings, time and date.

Drag down the screen until you reach the Date box.

press once, press a second time.

enter the date and press OK

save and exit

hope this works, it worked for me and I had exactly the same problem.

Basically, there are 2 ways of programming the date
and time - the short way and the long way.
If you are using the KX-T7730 phone on a Panasonic
KX-Txx 308/824 system:

SHORT WAY:
From the Switcboard / Main telephone
( ext 101, 10 or 9 ) with the handset on the
cradle/hook:
1. Press PROGRAM 0
2. Enter Date and Time
( The format is: yymmdd,
1 to 7 1=Monday 2=Tuesday etc, hh:mm,
0 or 1 0=AM 1=PM ) see example
3. Press AUTO DIAL / STORE to save your changes
4. Press PROGRAM to exit program mode

EXAMPLE:
If the date and time is 3 February 2010 Tuesday 2:15 pm you will enter as follows:
100203 2 02:15 1

LONG WAY:
From the Switcboard / Main telephone ( ext 101, 10 or 9 ) with the handset on the cradle/hook:
1. Press PROGRAM * # followed by the system
password ( default is 1234).
2. Now press 000 and then SP-PHONE.
Enter the year.
3. Scroll to the month with the right scroll key
(located at the right bottom corner of the phone).
To change the month use the AUTO ANS / MUTE
button.
4. Now scroll right again and change the date and
day.
To change the day, again use AUTO ANS / MUTE
5. Scroll right again and the time will appear.
Set the time.
To change am/pm scroll to it, and again,
use the AUTO ANS / MUTE button.
6. Press PROGRAM to exit program mode and you
are done.

Disable the "Automatic update" feature and set the clock manually.
To do this go to Menu, settings, initial setup, time and date, Autoupdate>Off, then set the clock and date.

i got in touch with tmobile about this problem with my phone and they told me to take battery out and sim card to reset it and so far its working hope his helps