How can i change time zone?

[Yaldiz]

HI:

I am using qt5 on embedded linux device.

How can i change timezone for date and time manually?

Thanks.

[JonB]

@Yaldiz
If you really want to change the (system) timezone, I don't think Qt libraries offer a call for that. You would need to do it via some other C++/OS-specific system call.

If all you want to do is convert datetimes across timezones Qt has QTimeZone Class.

[Yaldiz]

Is it possible for me to do this conversion using the QTimeZone class and make it permanent for the application?

[JonB]

@Yaldiz
No, as I said there is no static void QTimeZone::setTimeZone() function.

There are C library calls like tzset() which work off an (TZ?) environment variable you could alter. But I do not know which Qt or other libraries calls use that versus a more native timezone OS call.