1178259 - Changing the time zone then enabling "set time automatically" modifies the time to an incorrect value

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: Gaia::System, defect)

Description

[Johan Lorenzo [:jlorenzo]]

Attachment: Partial logcat since 'set auto' was re-enabled (with RIL and gaia debug enabled)

Prerequisites
Have a SIM card

STR
1. In settings -> date/time, disable "set automatically". Note: I was in the Europe/Paris time zone.
2. Change the time zone to one in behind the one you're in (here, I took America/Vancouver)
3. Re-enable "set automatically".

Results
The time is set to an hour back America/Vancouver, instead of being back to the one in step 1. You can wait as much time as you want, the correct time gets never set. See video for details: https://goo.gl/Vb25q2

Notes: In the attached logcat (not taken at the same time as the video), it seems like this error happens each time:
> 06-29 04:55:58.169   211   625 I Gecko   : RIL Worker: [0] Handling parcel as UNSOLICITED_SIGNAL_STRENGTH

However, I don't see why, once the right timezone is detected (as you can see on the video), the time is not correctly set. That's why I think we have an issue within Gaia.

Build info
Reproduced on master[1] (Flame and Aries) and 2.2[2]

[1] Build ID               20150628160206
Gaia Revision          8a1e4ae522c121c5cacd39b20a5386ec9055db82
Gaia Date              2015-06-25 21:58:25
Gecko Revision         https://hg.mozilla.org/mozilla-central/rev/eaf4f9b45117
Gecko Version          41.0a1
Device Name            flame
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.cltbld.20150628.193057
Firmware Date          Sun Jun 28 19:31:08 EDT 2015
Bootloader             L1TC000118D0

[2] Build ID               20150628002505
Gaia Revision          0179935627012dfde3ca036c9a71035be463b7ad
Gaia Date              2015-06-26 21:13:44
Gecko Revision         https://hg.mozilla.org/releases/mozilla-b2g37_v2_2/rev/35e09270da3a
Gecko Version          37.0
Device Name            flame
Firmware(Release)      4.4.2
Firmware(Incremental)  eng.cltbld.20150628.035537
Firmware Date          Sun Jun 28 03:55:48 EDT 2015
Bootloader             L1TC000118D0

Comment 1

[Johan Lorenzo [:jlorenzo]]

Based on the 3GPP specs about NITZ[1], there is no way a device can ask for the right time zone on demand. Then, we'd need a way to compensate the change until the device switches to another antenna. In any case, we can't keep modifying to a incorrect time

[1] http://www.etsi.org/deliver/etsi_TS/122000_122099/122042/10.00.00_60/ts_122042v100000p.pdf

Comment 2

[BMO Automation]

Firefox OS is not being worked on