Revert "Support time zone designator in QDateTime::fromString() based on ISO 8601-2004 standard."

This reverts commit 752d46c90ee0fc5f06f01feedd8e0659178b15d4.

2 files changed, 3 insertions, 29 deletions

diff --git a/src/corelib/global/qnamespace.qdoc b/src/corelib/global/qnamespace.qdoc
index 15c4efc..a756565 100644
--- a/src/corelib/global/qnamespace.qdoc
+++ b/src/corelib/global/qnamespace.qdoc
@@ -577,9 +577,8 @@
     be short, localized names. This is basically equivalent to using the date format
     string, "ddd MMM d yyyy". See QDate::toString() for more information.
 
-    \value ISODate \l{ISO 8601} extended format: either \c{YYYY-MM-DD} for dates or
-    \c{YYYY-MM-DDTHH:MM:SS}, \c{YYYY-MM-DDTHH:MM:SSTZD} (e.g., 1997-07-16T19:20:30+01:00)
-    for combined dates and times.
+    \value ISODate ISO 8601 extended format: either \c{YYYY-MM-DD} for dates or
+    \c{YYYY-MM-DDTHH:MM:SS} for combined dates and times.
 
     \value SystemLocaleShortDate The \l{QLocale::ShortFormat}{short format} used
     by the \l{QLocale::system()}{operating system}.
diff --git a/src/corelib/tools/qdatetime.cpp b/src/corelib/tools/qdatetime.cpp
index c6ab4e4..347de0c 100644
--- a/src/corelib/tools/qdatetime.cpp
+++ b/src/corelib/tools/qdatetime.cpp
@@ -3044,37 +3044,12 @@ QDateTime QDateTime::fromString(const QString& s, Qt::DateFormat f)
         if (tmp.size() == 10)
             return QDateTime(date);
 
-        tmp = tmp.mid(11);
-
         // Recognize UTC specifications
         if (tmp.endsWith(QLatin1Char('Z'))) {
             ts = Qt::UTC;
             tmp.chop(1);
         }
-
-        // Recognize timezone specifications
-        QRegExp rx(QLatin1String("[+-]"));
-        if (tmp.contains(rx)) {
-            int idx = tmp.indexOf(rx);
-            QString tmp2 = tmp.mid(idx);
-            tmp = tmp.left(idx);
-            bool ok = true;
-            int ntzhour = 1;
-            int ntzminute = 3;
-            if ( tmp2.indexOf(QLatin1Char(':')) == 3 )
-               ntzminute = 4;
-            const int tzhour(tmp2.mid(ntzhour, 2).toInt(&ok));
-            const int tzminute(tmp2.mid(ntzminute, 2).toInt(&ok));
-            QTime tzt(tzhour, tzminute);
-            int utcOffset = (tzt.hour() * 60 + tzt.minute()) * 60;
-            if ( utcOffset != 0 ) {
-                ts = Qt::OffsetFromUTC;
-                QDateTime dt(date, QTime::fromString(tmp, Qt::ISODate), ts);
-                dt.setUtcOffset( utcOffset * (tmp2.startsWith(QLatin1Char('-')) ? -1 : 1) );
-                return dt;
-            }
-        }
-        return QDateTime(date, QTime::fromString(tmp, Qt::ISODate), ts);
+        return QDateTime(date, QTime::fromString(tmp.mid(11), Qt::ISODate), ts);
     }
     case Qt::SystemLocaleDate:
     case Qt::SystemLocaleShortDate: