Vodacom Network Time

Maybe @Ockie can advise how we can get this irritating issue to the right people in Vodacom?
 
Confirmed, my wife's Sony Xperia Aqua is +- 2-3 minutes off time as well.
 
This is annoying. On all my android devices, Galaxy S7, Nexus 5X, HTC, the time is out by 2 minutes ahead of correct NTP time. As mentioned previously Android relies on cellphone network time when set to auto. My iPhone 6s is spot on obviously because it uses NTP protocol. I do a lot of remote cctv surveillance and all NVR's and DVR's are synched with NTP. Time needs to be accurate for this as well as when using GPS.

Vodacom please fix!!

Ockie you out there?
 
Last edited:
JohnDoe said:
This is annoying. On all my android devices, Galaxy S7, Nexus 5X, HTC, the time is out by 2 minutes ahead of correct NTP time. As mentioned previously Android relies on cellphone network time when set to auto. My iPhone 6s is spot on obviously because it uses NTP protocol. I do a lot of remote cctv surveillance and all NVR's and DVR's are synched with NTP. Time needs to be accurate for this as well as when using GPS.

Vodacom please fix!!

Ockie you out there?
Click to expand...

Will see to whom I can pass this on to.
 
I was wondering why my GPS was so rubbish all of a sudden!!! And true as bob, time on Vodacom handset which I was using for GPS is also out by 2 mins
 
aybbleek said:
I was wondering why my GPS was so rubbish all of a sudden!!! And true as bob, time on Vodacom handset which I was using for GPS is also out by 2 mins
Click to expand...

Please fix your time like I did on page one and see if it improves your GPS like it did mine. Will be interesteing to get a second opinion on how the clock time might affect some GPS.
 
Ockie said:
Please fix your time like I did on page one and see if it improves your GPS like it did mine. Will be interesteing to get a second opinion on how the clock time might affect some GPS.
Click to expand...

Will do in a few hours and provide feedback. Got some meetings first
 
I can confirm that setting the time manually fixes the GPS issue. Setting the phone back to automatic messes up the GPS, the "re-routing" in google maps was driving me nuts until I came across this thread....
 
Ockie said:
Please fix your time like I did on page one and see if it improves your GPS like it did mine. Will be interesteing to get a second opinion on how the clock time might affect some GPS.
Click to expand...


This happens because GPS satellites' time is co-ordinated with atomic clocks which are spot-on accurate. However if your GPS device (all android devices) is set for automatic time from the cellular network and this network's time is incorrect, the calculation of distance travelled by your GPS in x seconds versus what the satellite is set at will be incorrect. In Vodacom's example the offset is 120 seconds ahead of correct atomic clock time, your GPS speed measured will be incorrect, hence the missing of turns and having to make U-turns so often. Accurate time is most essential when using GPS. This problem will not occur on IOS devices as automatic time is set to NTP protocol which is linked to atomic time.

This is a simple explanation without the maths involved.
 
JohnDoe said:
This happens because GPS satellites' time is co-ordinated with atomic clocks which are spot-on accurate. However if your GPS device (all android devices) is set for automatic time from the cellular network and this network's time is incorrect, the calculation of distance travelled by your GPS in x seconds versus what the satellite is set at will be incorrect. In Vodacom's example the offset is 120 seconds ahead of correct atomic clock time, your GPS speed measured will be incorrect, hence the missing of turns and having to make U-turns so often. Accurate time is most essential when using GPS. This problem will not occur on IOS devices as automatic time is set to NTP protocol which is linked to atomic time.

This is a simple explanation without the maths involved.
Click to expand...

Thank you. Why does Android not link to NTP also? Surely that must be easy to do?
 
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