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Cell Phone Time

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  • R Offline
    R Offline
    Roger Wright
    wrote on last edited by
    #1

    I've always relied on my cell phone for keeping time, since wearing a watch is extremely hazardous when working around high voltage, and the phones are supposed to be synchronized to the GPS system. Or so I thought. Last night I happened to be in the truck with three different phones, and just took a look at their time displays. What a difference! My lady's TracPhone displayed 6:20PM, my Motorola Nextel phone read 6:26 PM, and my Samsung Epic from Sprint displayed 6:33 PM! Have they abandoned the GPS standard? All 3 were in a good signal area with full signal indicated, so they couldn't have been affected by a lack of service. Any thoughts?

    Will Rogers never met me.

    M D S T D 8 Replies Last reply
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    • R Roger Wright

      I've always relied on my cell phone for keeping time, since wearing a watch is extremely hazardous when working around high voltage, and the phones are supposed to be synchronized to the GPS system. Or so I thought. Last night I happened to be in the truck with three different phones, and just took a look at their time displays. What a difference! My lady's TracPhone displayed 6:20PM, my Motorola Nextel phone read 6:26 PM, and my Samsung Epic from Sprint displayed 6:33 PM! Have they abandoned the GPS standard? All 3 were in a good signal area with full signal indicated, so they couldn't have been affected by a lack of service. Any thoughts?

      Will Rogers never met me.

      M Offline
      M Offline
      Marc A Brown
      wrote on last edited by
      #2

      Some (many?) phones only sync up when you power-cycle them.

      1 Reply Last reply
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      • R Roger Wright

        I've always relied on my cell phone for keeping time, since wearing a watch is extremely hazardous when working around high voltage, and the phones are supposed to be synchronized to the GPS system. Or so I thought. Last night I happened to be in the truck with three different phones, and just took a look at their time displays. What a difference! My lady's TracPhone displayed 6:20PM, my Motorola Nextel phone read 6:26 PM, and my Samsung Epic from Sprint displayed 6:33 PM! Have they abandoned the GPS standard? All 3 were in a good signal area with full signal indicated, so they couldn't have been affected by a lack of service. Any thoughts?

        Will Rogers never met me.

        D Offline
        D Offline
        Dario Solera
        wrote on last edited by
        #3

        Unless configured otherwise, phones take the time from the cell phone network, *not* from GPS. Different network operators might have different times. I fine mine is 15 seconds behind the correct time.

        If you truly believe you need to pick a mobile phone that "says something" about your personality, don't bother. You don't have a personality. A mental illness, maybe, but not a personality. [Charlie Brooker] ScrewTurn Wiki, Software Localization Tools & Services and My Blog

        K 1 Reply Last reply
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        • D Dario Solera

          Unless configured otherwise, phones take the time from the cell phone network, *not* from GPS. Different network operators might have different times. I fine mine is 15 seconds behind the correct time.

          If you truly believe you need to pick a mobile phone that "says something" about your personality, don't bother. You don't have a personality. A mental illness, maybe, but not a personality. [Charlie Brooker] ScrewTurn Wiki, Software Localization Tools & Services and My Blog

          K Offline
          K Offline
          keyboard warrior
          wrote on last edited by
          #4

          Dario Solera wrote:

          I fine mine is 15 seconds behind the correct time.

          well, time is relative.

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          • R Roger Wright

            I've always relied on my cell phone for keeping time, since wearing a watch is extremely hazardous when working around high voltage, and the phones are supposed to be synchronized to the GPS system. Or so I thought. Last night I happened to be in the truck with three different phones, and just took a look at their time displays. What a difference! My lady's TracPhone displayed 6:20PM, my Motorola Nextel phone read 6:26 PM, and my Samsung Epic from Sprint displayed 6:33 PM! Have they abandoned the GPS standard? All 3 were in a good signal area with full signal indicated, so they couldn't have been affected by a lack of service. Any thoughts?

            Will Rogers never met me.

            S Offline
            S Offline
            Slacker007
            wrote on last edited by
            #5

            I have the same issue but with servers. If I log into one network the sever time is 15 mins different then my workstation and is completely different then another server.

            -- ** You don't hire a handyman to build a house, you hire a carpenter. ** Jack of all trades and master of none.

            R 1 Reply Last reply
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            • R Roger Wright

              I've always relied on my cell phone for keeping time, since wearing a watch is extremely hazardous when working around high voltage, and the phones are supposed to be synchronized to the GPS system. Or so I thought. Last night I happened to be in the truck with three different phones, and just took a look at their time displays. What a difference! My lady's TracPhone displayed 6:20PM, my Motorola Nextel phone read 6:26 PM, and my Samsung Epic from Sprint displayed 6:33 PM! Have they abandoned the GPS standard? All 3 were in a good signal area with full signal indicated, so they couldn't have been affected by a lack of service. Any thoughts?

              Will Rogers never met me.

              T Offline
              T Offline
              twohowlingdogs
              wrote on last edited by
              #6

              I have found my phone to be on the European Summer Time a couple times...and I live in Utah, USA! I have had to take it off of automatic time syncing to get it to tell me what time it is here! EVO 4G.

              If you know what I mean...and I think you do...

              1 Reply Last reply
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              • S Slacker007

                I have the same issue but with servers. If I log into one network the sever time is 15 mins different then my workstation and is completely different then another server.

                -- ** You don't hire a handyman to build a house, you hire a carpenter. ** Jack of all trades and master of none.

                R Offline
                R Offline
                Roger Wright
                wrote on last edited by
                #7

                That's an easy fix, if you have access to the command line. ;P

                Will Rogers never met me.

                1 Reply Last reply
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                • R Roger Wright

                  I've always relied on my cell phone for keeping time, since wearing a watch is extremely hazardous when working around high voltage, and the phones are supposed to be synchronized to the GPS system. Or so I thought. Last night I happened to be in the truck with three different phones, and just took a look at their time displays. What a difference! My lady's TracPhone displayed 6:20PM, my Motorola Nextel phone read 6:26 PM, and my Samsung Epic from Sprint displayed 6:33 PM! Have they abandoned the GPS standard? All 3 were in a good signal area with full signal indicated, so they couldn't have been affected by a lack of service. Any thoughts?

                  Will Rogers never met me.

                  D Offline
                  D Offline
                  David Crow
                  wrote on last edited by
                  #8

                  Depending on the age of the phones, they may not be able to synch. My last phone was like that. The phone itself had the option on one of the menus, but my network provider had yet to implement the synch feature. Fortunately the clock was never more than a handful of seconds off.

                  "One man's wage rise is another man's price increase." - Harold Wilson

                  "Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

                  "Some people are making such thorough preparation for rainy days that they aren't enjoying today's sunshine." - William Feather

                  1 Reply Last reply
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                  • R Roger Wright

                    I've always relied on my cell phone for keeping time, since wearing a watch is extremely hazardous when working around high voltage, and the phones are supposed to be synchronized to the GPS system. Or so I thought. Last night I happened to be in the truck with three different phones, and just took a look at their time displays. What a difference! My lady's TracPhone displayed 6:20PM, my Motorola Nextel phone read 6:26 PM, and my Samsung Epic from Sprint displayed 6:33 PM! Have they abandoned the GPS standard? All 3 were in a good signal area with full signal indicated, so they couldn't have been affected by a lack of service. Any thoughts?

                    Will Rogers never met me.

                    E Offline
                    E Offline
                    Ennis Ray Lynch Jr
                    wrote on last edited by
                    #9

                    I was on a bus to Augusta, ME from Portland, ME and my cell phone insisted I was in Boston, Mass. I don't know what the above has to do with your story, just thought that I would share.

                    Need custom software developed? I do custom programming based primarily on MS tools with an emphasis on C# development and consulting. I also do Android Programming as I find it a refreshing break from the MS. "And they, since they Were not the one dead, turned to their affairs" -- Robert Frost

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                    • R Roger Wright

                      I've always relied on my cell phone for keeping time, since wearing a watch is extremely hazardous when working around high voltage, and the phones are supposed to be synchronized to the GPS system. Or so I thought. Last night I happened to be in the truck with three different phones, and just took a look at their time displays. What a difference! My lady's TracPhone displayed 6:20PM, my Motorola Nextel phone read 6:26 PM, and my Samsung Epic from Sprint displayed 6:33 PM! Have they abandoned the GPS standard? All 3 were in a good signal area with full signal indicated, so they couldn't have been affected by a lack of service. Any thoughts?

                      Will Rogers never met me.

                      S Offline
                      S Offline
                      Steve Mayfield
                      wrote on last edited by
                      #10

                      Cell towers need accurate time for the network to work. Most have at least one GPS receiver in the tower. [^] In one of our products we use time servers that use CDMA signals instead of GPS and they are accurate to < 10 us. The lack of accuracy is probably more in the implementation of the cell phone clock application itself.

                      Steve _________________ I C(++) therefore I am

                      R 1 Reply Last reply
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                      • S Steve Mayfield

                        Cell towers need accurate time for the network to work. Most have at least one GPS receiver in the tower. [^] In one of our products we use time servers that use CDMA signals instead of GPS and they are accurate to < 10 us. The lack of accuracy is probably more in the implementation of the cell phone clock application itself.

                        Steve _________________ I C(++) therefore I am

                        R Offline
                        R Offline
                        Roger Wright
                        wrote on last edited by
                        #11

                        Steve Mayfield wrote:

                        The lack of accuracy is probably more in the implementation of the cell phone clock application itself.

                        Probably, but 13 minutes worth? :wtf: I can do better than that with a relaxation oscillator!

                        Will Rogers never met me.

                        1 Reply Last reply
                        0
                        • R Roger Wright

                          I've always relied on my cell phone for keeping time, since wearing a watch is extremely hazardous when working around high voltage, and the phones are supposed to be synchronized to the GPS system. Or so I thought. Last night I happened to be in the truck with three different phones, and just took a look at their time displays. What a difference! My lady's TracPhone displayed 6:20PM, my Motorola Nextel phone read 6:26 PM, and my Samsung Epic from Sprint displayed 6:33 PM! Have they abandoned the GPS standard? All 3 were in a good signal area with full signal indicated, so they couldn't have been affected by a lack of service. Any thoughts?

                          Will Rogers never met me.

                          P Offline
                          P Offline
                          Peter_in_2780
                          wrote on last edited by
                          #12

                          Down under, it depends on both network and handset. Telstra does support phones setting their time from the network (usually a config option in mid- to up-market phones), but Vodafone doesn't (AFAIK). No idea about Optus and other carriers. My two J2ME-capable phones (Motorola V3XX, Nokia N95) both sync with Telstra because I told them to, but my wife's low-spec Nokia doesn't because it can't. The only problem I have with it is daylight saving. The bits of Oz that do daylight saving changed the cutover dates since the phones' daylight savings tables were coded. (Actually, I'm not sure about the Nokia - the Motorola definitely wants to adjust the time on the wrong day, then gets it right after a reboot.) Moral: check phone setup - you might not be requesting network time. Cheers, Peter

                          Software rusts. Simon Stephenson, ca 1994.

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