Qt: Fix timezone issues with time overrides

CHANGES

@@ -15,6 +15,7 @@ Bugfixes:
  - GB MBC: Fix RTC loading when file size is off
  - GB Serialize: Fix deserializing video STAT
  - GB, GBA Savedata: Fix savestate-related save overwriting (fixes mgba.io/i/834)
+ - Qt: Fix timezone issues with time overrides
 Misc:
  - Qt: Don't rebuild library view if style hasn't changed
  - SDL: Fix 2.0.5 build on macOS under some circumstances

src/platform/qt/SensorView.cpp

@@ -28,10 +28,10 @@ SensorView::SensorView(GameController* controller, InputController* input, QWidg
 
 	connect(m_ui.timeNoOverride, &QAbstractButton::clicked, controller, &GameController::setRealTime);
 	connect(m_ui.timeFixed, &QRadioButton::clicked, [controller, this] () {
-		controller->setFixedTime(m_ui.time->dateTime());
+		controller->setFixedTime(m_ui.time->dateTime().toUTC());
 	});
 	connect(m_ui.timeFakeEpoch, &QRadioButton::clicked, [controller, this] () {
-		controller->setFakeEpoch(m_ui.time->dateTime());
+		controller->setFakeEpoch(m_ui.time->dateTime().toUTC());
 	});
 	connect(m_ui.time, &QDateTimeEdit::dateTimeChanged, [controller, this] (const QDateTime&) {
 		m_ui.timeButtons->checkedButton()->clicked();

src/platform/qt/SensorView.ui

@@ -96,9 +96,6 @@
           <property name="displayFormat">
            <string>MM/dd/yy hh:mm:ss AP</string>
           </property>
-          <property name="timeSpec">
-           <enum>Qt::UTC</enum>
-          </property>
          </widget>
         </item>
        </layout>