Qt5 (C++) conversion from GMT/UTC string to UNIX timestamp

Question

I am trying to convert from a GMT/UTC string like this:

11 Sep 2014 14:31:50 GMT

to UNIX timestamp in Qt (c++).

Here's the code (note that I have removed " GMT" from the first string):

QString l_time = "11 Sep 2014 14:31:50";
QDateTime l_dt = QDateTime::fromString(p_gmt_date, "dd MMM yyyy hh:mm:ss");
uint l_timestamp = l_dt.toTimeSpec(Qt::UTC).toTime_t();

This gives me the result:

l_timestamp = 1410438710

Of course this is wrong and I think it is due to "local" settings (consider I am in Italy).

Verifying on this website I get the correct result:

1410445910

In the same website I can crosscheck that the first result is wrong since it returns:

Thu, 11 Sep 2014 12:31:50 GMT

Does anyone can help me? Thanks.

Answer 1

Fixed!

QString l_time = "11 Sep 2014 14:31:50";
QDateTime l_dt = QLocale(QLocale::Italian, QLocale::Italy).toDateTime(l_time, "dd MMM yyyy hh:mm:ss");
l_dt.setTimeSpec(Qt::UTC);
uint l_timestamp = l_dt.toTime_t();

This gives me the correct result:

1410445910