8 Replies Latest reply: Aug 8, 2007 5:53 AM by AndyO
ken444 Level 1 (10 points)
Under Settings, Date and Time, Set automatically, I have selected "On". My clock is five seconds slow compared to the NIST.gov server. What serer does the IPhone connect to for time information?

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  • rkny Level 1 (90 points)
    5 seconds slow? Unacceptable! Heresy! Recall!

    Mine's 30 seconds slow.

    I doubt it connects to any server. Cell phone companies usually push the time over the air.
  • Andrew Friedman1 Level 1 (10 points)
    Don't know for sure, but I believe it is pulling the time from AT&T like a regular mobile.
  • Bontemps Level 2 (310 points)
    yeah, I wonder if Apple shouldn't have it automatically update with the Apple server time clock like they do with the computer clock settings.
  • MobileDev Level 3 (565 points)
    You're lucky.

    Some people have said their clock is off by two minutes or more.

    (Which yes, would indeed be intolerable in this day and age... especially with a lot of the population using cell phones as watches.)
  • Goshia Level 4 (1,400 points)
    well the problem is that the phones are GMS and they get there timing from the base stations. CDMA phones are GPS based and the time is very close to NIST. The base stations have to have lock on 7 satellites before it can go operational so the timing is very accurate.
  • Nathan C Level 5 (6,260 points)
    ken444,

    It gets time updates from whichever cell tower you are connected to.

    Hope this helps,

    Nathan C.
  • Janet May Level 1 (0 points)
    Definitely an AT&T issue. I noticed my clock was correct, then suddenly, it was 2 hours and 3 minutes ahead all on its own! I checked my friend's AT&T Treo and the time was exactly the same as the iPhone. It eventually corrected itself.
  • AndyO Level 6 (17,050 points)
    Since when set to automatic, the iPhone gets the time from the local cell tower, if anyone is finding it in error by a degree that is problematic, simply set the time to manual in the Date and Time settings pane.