As you might listened, Russian government loves to change the law about timezones in Russia every couple of years. It causes situation when one year we have daylight savings time, but another year we don't have it.
I use Huawei G700 with rooted Android 4.2 with timezones issue: if I enable clock synchronization via GPS on menu, my Android's clock goes wrong for extra hour; it disables synchronization and sets up right time by hands, I see wrong timestamps in messaging apps, like I'm writing from the future.
The system timezone sets up right, to Moscow Standard Time, but the
tzdata itself in the Android is obsolete, I guess. TimeZone Changer doesn't help - it shows that my timezone is Moscow, and if I change it to Moscow, nothing really changes =)
- how could I know current
tzdataversion used by Android, and
- how could I update it?
Edit: I searched for something related to
tzdata on my Android file system and found file
/system/usr/share/zoneinfo/zoneinfo.version with content "2012h" - it looks like
tzdata version. There are also 2 other files in this dir -
zoneinfo.dat, but their content doesn't looks as
Edit2: currently choosen timezone (not it's offset, but timezone itself!) could be found by typing
getprop persist.sys.timezone in terminal emulator.