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General GPS does not give correct time?

Discussion in 'Android Devices' started by jbeale, Aug 30, 2011.

  1. jbeale

    jbeale Newbie
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    I'm running "GPS Test" on my Galaxy Ace GT-S5830L running Android 2.3.4 (GINGERBREAD.UBKP7).

    The app shows that 6 or more satellites are in use, and displays the correct Lat/Lon position, but the time display is consistently 15 seconds fast, as compared with the website time.gov (which says network delay = 0.2 seconds). In the same location, another phone (HTC MyTouch 3G) also running GPS Test agrees with time.gov to within one second.

    A gps receiver in lock should always know the time internally to better than 1 microsecond. Does the Galaxy Ace GPS unit simply not transfer time to applications, or is there some other problem?
     

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  2. jbeale

    jbeale Newbie
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    Ok, I had forgotten this: GPS time is currently ahead of UTC by 15 seconds, because GPS does not account for leap seconds. See also: GPS, UTC, and TAI Clocks

    So, somehow the HTC MyTouch is aware of the 15 second GPS-UTC time difference, and my Galaxy Ace is not.
     
  3. chismay

    chismay Android Enthusiast
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    ASSISTANT HEAD CHEF
    LONDON
    ive found since updating to gingerbread and then not updating g-maps i can keep it on sdcard but the gps takes alot longer to lock. dont know if that contributes to your thread mate srry but just thought id say. lol
     

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