[HD2 Windows Mobile 6.5 Q&A, Help & Troubleshooting] plasmar:
best results I got so far was to use this program(Time Zone editor by Galina) to edit the timezone info that is automatically selected(its not a great fix but it works the best so far:P)...

- http://www.mobilitysite.com/boards/...s/218118-time-zone-editor-windows-mobile.html (I've uploaded onto this thread incase it ever goes offline or likes)

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Ok so I spent 1.5+ days and haven't stopped but I figure I qualify for asking:P

For people who have an HTC HD2 and are on rogers/fido, what rom do you use and did you have time zone issues, whats the solution used?

People who had timezone syncing issues on other carriers, what were your solutions???

side notes: near the bottom is stuff I've toyed with, if I missed anything do not hesitate mentioning it, in case I or someone else hasn't tried it:P

- I'm in GMT -6 Central US (Winnipeg, Manitoba, Canada); the phone sets to GMT -6 Saskatchewan (no daylight savings)

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anyway here's my mixed success story(not yet satisfied:P)...

I've found that on HD2O© v22 6.5.0 that if you set the timezone through the registry ("HKEY_LOCAL_MACHINE\Time\TimeZoneInformation") the clock will adapt the time properly(seems to be the only rom that does this, that I found so far); however something still eventually re-syncs the time changing it back(I think was 3g related, but I continued with trying out what I had success with in on other roms).... I figure if all else fails I'll be writing a mortscript that will just writes the value consistently or checks the value and sets it or similar but seems like a crappy solution:P

on Energy™ 6.5|21916 (probably any rom that has HTC sense, if you use it; I think this would require a data plan since I was using wifi:P to update) I find you can set the the city for the weather feature on HTC Sense and then set the update frequency to 15min and that will override the timezone from the carrier..... however I don't care for/like HTC sense; I use a digital clock today plugin + conduit pocket player + phonealarm....

misc:

-on Energy after disabling a bunch of the feats. in the registry(stuff listed below) and disabling htc location services feats. it was still syncing every few minutes(still looking further into; maybe I missed something)

-I've toyed with wm6.1 and that seemed to sync but haven't really toyed with it much more then just initially seeing that it syncs:P(didn't wait to see if it would change the time zone after xx amount of time)

-on android(every sd version I've tried so far 4-5 of em) the time is fine, it sets up the right timezone...

-my old phone "HTC Elfin" also had no issues with setting the proper time zone (wm 6.1,6.5, 6.5.x)

-I've tried Artemis HD2 v66.0, just to see that it wasn't a 6.5 issue but no still same timezone issue....

all time related registry keys I'm aware of (and/or am toying with) :

HKCU\ControlPanel\Time\UseNetworkTime

HKLM\Time\TimeZoneInformation << holds the current set timezone

HKLM\Software\Microsoft\Clock\AutoDST << ??

HKLM\Software\Microsoft\Clock\NetworkTimeSync

HKLM\Drivers\BuiltIn\RIL\DisableSyncTime

HKLM\Drivers\BuiltIn\RIL\ForceToSetTimeZone

HKLM\Drivers\BuiltIn\RIL\GSMTimeZoneSyncEnable

HKLM\Drivers\BuiltIn\RIL\GSMTimeSyncEnable

HKLM\Drivers\BuiltIn\RIL\NITZEnable <<< "automatic change time zone and clock"

I've been toying with(wanting 6.5 or 6.1; don't like 6.5.x): Energy™ 6.5|21916, HD2O© v22 6.5.0, CleanEX RV Ultra 1.01, I don't recall if anything else....

I'm considering toying with different radio's next... dunno if worth it....