diff --git a/gpxsee.pro b/gpxsee.pro
index 7dd7f39b..321dde77 100644
--- a/gpxsee.pro
+++ b/gpxsee.pro
@@ -14,8 +14,7 @@ greaterThan(QT_MAJOR_VERSION, 4) {
     QT += widgets
     QT += printsupport
 }
-lessThan(QT_MAJOR_VERSION, 5) {QT += opengl}
-equals(QT_MAJOR_VERSION, 5) : lessThan(QT_MINOR_VERSION, 4) {QT += opengl}
+lessThan(QT_VERSION, 5.4.0) {QT += opengl}
 
 INCLUDEPATH += ./src
 HEADERS += src/common/config.h \
@@ -348,6 +347,9 @@ greaterThan(QT_MAJOR_VERSION, 4) {
     HEADERS += src/data/geojsonparser.h
     SOURCES += src/data/geojsonparser.cpp
 }
+greaterThan(QT_VERSION, 5.1.0) {
+    HEADERS += src/GUI/timezoneinfo.h
+}
 
 DEFINES += APP_VERSION=\\\"$$VERSION\\\" \
     QT_NO_DEPRECATED_WARNINGS
diff --git a/src/GUI/gui.cpp b/src/GUI/gui.cpp
index 07d3e482..5592ebe6 100644
--- a/src/GUI/gui.cpp
+++ b/src/GUI/gui.cpp
@@ -248,7 +248,7 @@ void GUI::createActions()
 	_reloadFileAction->setMenuRole(QAction::NoRole);
 	_reloadFileAction->setShortcut(RELOAD_SHORTCUT);
 	_reloadFileAction->setActionGroup(_fileActionGroup);
-	connect(_reloadFileAction, SIGNAL(triggered()), this, SLOT(reloadFile()));
+	connect(_reloadFileAction, SIGNAL(triggered()), this, SLOT(reloadFiles()));
 	addAction(_reloadFileAction);
 	_statisticsAction = new QAction(tr("Statistics..."), this);
 	_statisticsAction->setMenuRole(QAction::NoRole);
@@ -791,7 +791,12 @@ bool GUI::loadFile(const QString &fileName)
 			_trackDistance += track.distance();
 			_time += track.time();
 			_movingTime += track.movingTime();
-			const QDate &date = track.date().date();
+#ifdef ENABLE_TIMEZONES
+			const QDateTime date = track.date().toTimeZone(
+			  _options.timeZone.zone());
+#else // ENABLE_TIMEZONES
+			const QDateTime &date = track.date();
+#endif // ENABLE_TIMEZONES
 			if (_dateRange.first.isNull() || _dateRange.first > date)
 				_dateRange.first = date;
 			if (_dateRange.second.isNull() || _dateRange.second < date)
@@ -990,9 +995,16 @@ void GUI::openOptions()
 		_mapView->setDevicePixelRatio(devicePixelRatioF(),
 		  options.hidpiMap ? devicePixelRatioF() : 1.0);
 #endif // ENABLE_HIDPI
+#ifdef ENABLE_TIMEZONES
+	if (options.timeZone != _options.timeZone) {
+		_mapView->setTimeZone(options.timeZone.zone());
+		_dateRange.first = _dateRange.first.toTimeZone(options.timeZone.zone());
+		_dateRange.second = _dateRange.second.toTimeZone(options.timeZone.zone());
+	}
+#endif // ENABLE_TIMEZONES
 
 	if (reload)
-		reloadFile();
+		reloadFiles();
 
 	_options = options;
 }
@@ -1185,7 +1197,7 @@ void GUI::plot(QPrinter *printer)
 	}
 }
 
-void GUI::reloadFile()
+void GUI::reloadFiles()
 {
 	_trackCount = 0;
 	_routeCount = 0;
@@ -1195,7 +1207,7 @@ void GUI::reloadFile()
 	_routeDistance = 0;
 	_time = 0;
 	_movingTime = 0;
-	_dateRange = DateRange(QDate(), QDate());
+	_dateRange = DateTimeRange(QDateTime(), QDateTime());
 	_pathName = QString();
 
 	for (int i = 0; i < _tabs.count(); i++)
@@ -1229,7 +1241,7 @@ void GUI::closeFiles()
 	_routeDistance = 0;
 	_time = 0;
 	_movingTime = 0;
-	_dateRange = DateRange(QDate(), QDate());
+	_dateRange = DateTimeRange(QDateTime(), QDateTime());
 	_pathName = QString();
 
 	_sliderPos = 0;
@@ -1867,6 +1879,9 @@ void GUI::writeSettings()
 	if (_options.showSecondarySpeed != SHOW_SECONDARY_SPEED_DEFAULT)
 		settings.setValue(SHOW_SECONDARY_SPEED_SETTING,
 		  _options.showSecondarySpeed);
+	if (_options.timeZone != TimeZoneInfo())
+		settings.setValue(TIME_ZONE_SETTING, QVariant::fromValue(
+		  _options.timeZone));
 	if (_options.poiRadius != POI_RADIUS_DEFAULT)
 		settings.setValue(POI_RADIUS_SETTING, _options.poiRadius);
 	if (_options.useOpenGL != USE_OPENGL_DEFAULT)
@@ -2139,6 +2154,9 @@ void GUI::readSettings()
 	_options.showSecondarySpeed = settings.value(
 	  SHOW_SECONDARY_SPEED_SETTING,
 	  SHOW_SECONDARY_SPEED_DEFAULT).toBool();
+#ifdef ENABLE_TIMEZONES
+	_options.timeZone = settings.value(TIME_ZONE_SETTING).value<TimeZoneInfo>();
+#endif // ENABLE_TIMEZONES
 	_options.automaticPause = settings.value(AUTOMATIC_PAUSE_SETTING,
 	  AUTOMATIC_PAUSE_DEFAULT).toBool();
 	_options.pauseInterval = settings.value(PAUSE_INTERVAL_SETTING,
@@ -2203,6 +2221,9 @@ void GUI::readSettings()
 	  _options.hidpiMap ? devicePixelRatioF() : 1.0);
 #endif // ENABLE_HIDPI
 	_mapView->setProjection(_options.projection);
+#ifdef ENABLE_TIMEZONES
+	_mapView->setTimeZone(_options.timeZone.zone());
+#endif // ENABLE_TIMEZONES
 
 	for (int i = 0; i < _tabs.count(); i++) {
 		_tabs.at(i)->setPalette(_options.palette);
diff --git a/src/GUI/gui.h b/src/GUI/gui.h
index 95c2ab68..5faa0834 100644
--- a/src/GUI/gui.h
+++ b/src/GUI/gui.h
@@ -48,7 +48,7 @@ private slots:
 	void exportFile();
 	void openFile();
 	void closeAll();
-	void reloadFile();
+	void reloadFiles();
 	void statistics();
 	void openPOIFile();
 	void closePOIFiles();
@@ -92,7 +92,7 @@ private slots:
 	void mapInitialized();
 
 private:
-	typedef QPair<QDate, QDate> DateRange;
+	typedef QPair<QDateTime, QDateTime> DateTimeRange;
 
 	void loadPOIs();
 	void closeFiles();
@@ -220,7 +220,7 @@ private:
 	int _trackCount, _routeCount, _areaCount, _waypointCount;
 	qreal _trackDistance, _routeDistance;
 	qreal _time, _movingTime;
-	DateRange _dateRange;
+	DateTimeRange _dateRange;
 	QString _pathName;
 
 	qreal _sliderPos;
diff --git a/src/GUI/mapview.cpp b/src/GUI/mapview.cpp
index b2150b7e..46d308c3 100644
--- a/src/GUI/mapview.cpp
+++ b/src/GUI/mapview.cpp
@@ -59,8 +59,6 @@ MapView::MapView(Map *map, POI *poi, QWidget *parent)
 	_poi = poi;
 	connect(_poi, SIGNAL(pointsChanged()), this, SLOT(updatePOI()));
 
-	_units = Metric;
-	_coordinatesFormat = DecimalDegrees;
 	_mapOpacity = 1.0;
 	_backgroundColor = Qt::white;
 	_markerColor = Qt::red;
@@ -122,7 +120,6 @@ PathItem *MapView::addTrack(const Track &track)
 	ti->setColor(_palette.nextColor());
 	ti->setWidth(_trackWidth);
 	ti->setStyle(_trackStyle);
-	ti->setUnits(_units);
 	ti->setVisible(_showTracks);
 	ti->setDigitalZoom(_digitalZoom);
 	ti->setMarkerColor(_markerColor);
@@ -149,8 +146,6 @@ PathItem *MapView::addRoute(const Route &route)
 	ri->setColor(_palette.nextColor());
 	ri->setWidth(_routeWidth);
 	ri->setStyle(_routeStyle);
-	ri->setUnits(_units);
-	ri->setCoordinatesFormat(_coordinatesFormat);
 	ri->setVisible(_showRoutes);
 	ri->showWaypoints(_showRouteWaypoints);
 	ri->showWaypointLabels(_showWaypointLabels);
@@ -200,7 +195,6 @@ void MapView::addWaypoints(const QVector<Waypoint> &waypoints)
 		wi->setSize(_waypointSize);
 		wi->setColor(_waypointColor);
 		wi->showLabel(_showWaypointLabels);
-		wi->setToolTipFormat(_units, _coordinatesFormat);
 		wi->setVisible(_showWaypoints);
 		wi->setDigitalZoom(_digitalZoom);
 		_scene->addItem(wi);
@@ -401,7 +395,6 @@ void MapView::addPOI(const QList<Waypoint> &waypoints)
 		pi->showLabel(_showPOILabels);
 		pi->setVisible(_showPOI);
 		pi->setDigitalZoom(_digitalZoom);
-		pi->setToolTipFormat(_units, _coordinatesFormat);
 		_scene->addItem(pi);
 
 		_pois.insert(SearchPointer<Waypoint>(&(pi->waypoint())), pi);
@@ -410,42 +403,32 @@ void MapView::addPOI(const QList<Waypoint> &waypoints)
 
 void MapView::setUnits(Units units)
 {
-	if (_units == units)
-		return;
-
-	_units = units;
-
-	_mapScale->setUnits(_units);
+	WaypointItem::setUnits(units);
+	PathItem::setUnits(units);
 
 	for (int i = 0; i < _tracks.count(); i++)
-		_tracks[i]->setUnits(_units);
+		_tracks[i]->updateTicks();
 	for (int i = 0; i < _routes.count(); i++)
-		_routes[i]->setUnits(_units);
-	for (int i = 0; i < _waypoints.size(); i++)
-		_waypoints.at(i)->setToolTipFormat(_units, _coordinatesFormat);
+		_routes[i]->updateTicks();
 
-	for (POIHash::const_iterator it = _pois.constBegin();
-	  it != _pois.constEnd(); it++)
-		it.value()->setToolTipFormat(_units, _coordinatesFormat);
+	_mapScale->setUnits(units);
 }
 
 void MapView::setCoordinatesFormat(CoordinatesFormat format)
 {
-	if (_coordinatesFormat == format)
-		return;
+	WaypointItem::setCoordinatesFormat(format);
 
-	_coordinatesFormat = format;
+	_coordinates->setFormat(format);
+}
 
-	_coordinates->setFormat(_coordinatesFormat);
-
-	for (int i = 0; i < _waypoints.count(); i++)
-		_waypoints.at(i)->setToolTipFormat(_units, _coordinatesFormat);
-	for (int i = 0; i < _routes.count(); i++)
-		_routes[i]->setCoordinatesFormat(_coordinatesFormat);
-
-	for (POIHash::const_iterator it = _pois.constBegin();
-	  it != _pois.constEnd(); it++)
-		it.value()->setToolTipFormat(_units, _coordinatesFormat);
+void MapView::setTimeZone(const QTimeZone &zone)
+{
+#ifdef ENABLE_TIMEZONES
+	WaypointItem::setTimeZone(zone);
+	PathItem::setTimeZone(zone);
+#else // ENABLE_TIMEZONES
+	Q_UNUSED(zone);
+#endif // ENABLE_TIMEZONES
 }
 
 void MapView::clearMapCache()
diff --git a/src/GUI/mapview.h b/src/GUI/mapview.h
index c0800f0f..fb57e091 100644
--- a/src/GUI/mapview.h
+++ b/src/GUI/mapview.h
@@ -31,6 +31,7 @@ class GraphItem;
 class AreaItem;
 class Area;
 class GraphicsScene;
+class QTimeZone;
 
 class MapView : public QGraphicsView
 {
@@ -83,6 +84,7 @@ public slots:
 	void showTicks(bool show);
 	void clearMapCache();
 	void setCoordinatesFormat(CoordinatesFormat format);
+	void setTimeZone(const QTimeZone &zone);
 	void setDevicePixelRatio(qreal deviceRatio, qreal mapRatio);
 	void setProjection(int id);
 
@@ -137,8 +139,6 @@ private:
 	POI *_poi;
 
 	Palette _palette;
-	Units _units;
-	CoordinatesFormat _coordinatesFormat;
 	qreal _mapOpacity;
 	Projection _projection;
 
diff --git a/src/GUI/optionsdialog.cpp b/src/GUI/optionsdialog.cpp
index 10732440..0ade8aba 100644
--- a/src/GUI/optionsdialog.cpp
+++ b/src/GUI/optionsdialog.cpp
@@ -167,11 +167,8 @@ QWidget *OptionsDialog::createAppearancePage()
 	// Palette & antialiasing
 	_baseColor = new ColorBox();
 	_baseColor->setColor(_options->palette.color());
-	_colorOffset = new QDoubleSpinBox();
-	_colorOffset->setMinimum(0);
-	_colorOffset->setMaximum(1.0);
-	_colorOffset->setSingleStep(0.01);
-	_colorOffset->setValue(_options->palette.shift());
+	_colorOffset = new PercentSlider();
+	_colorOffset->setValue(_options->palette.shift() * 100);
 	QFormLayout *paletteLayout = new QFormLayout();
 	paletteLayout->addRow(tr("Base color:"), _baseColor);
 	paletteLayout->addRow(tr("Palette shift:"), _colorOffset);
@@ -419,6 +416,29 @@ QWidget *OptionsDialog::createDataPage()
 	_showSecondaryElevation = new QCheckBox(tr("Show secondary elevation"));
 	_showSecondaryElevation->setChecked(_options->showSecondaryElevation);
 
+#ifdef ENABLE_TIMEZONES
+	_utcZone = new QRadioButton(tr("UTC"));
+	_systemZone = new QRadioButton(tr("System"));
+	_customZone = new QRadioButton(tr("Custom"));
+	if (_options->timeZone.type() == TimeZoneInfo::UTC)
+		_utcZone->setChecked(true);
+	else if (_options->timeZone.type() == TimeZoneInfo::System)
+		_systemZone->setChecked(true);
+	else
+		_customZone->setChecked(true);
+	_timeZone = new QComboBox();
+	_timeZone->setEnabled(_customZone->isChecked());
+	QList<QByteArray> zones = QTimeZone::availableTimeZoneIds();
+	for (int i = 0; i < zones.size(); i++)
+		_timeZone->addItem(zones.at(i));
+	_timeZone->setCurrentText(_options->timeZone.customZone().id());
+	connect(_customZone, SIGNAL(toggled(bool)), _timeZone,
+	  SLOT(setEnabled(bool)));
+	QHBoxLayout *customZoneLayout = new QHBoxLayout();
+	customZoneLayout->addSpacing(20);
+	customZoneLayout->addWidget(_timeZone);
+#endif // ENABLE_TIMEZONES
+
 	QWidget *sourceTab = new QWidget();
 	QVBoxLayout *sourceTabLayout = new QVBoxLayout();
 
@@ -439,14 +459,32 @@ QWidget *OptionsDialog::createDataPage()
 	elevationOptions->addWidget(_dataDEMElevation);
 	elevationOptions->addWidget(_showSecondaryElevation);
 
+#ifdef ENABLE_TIMEZONES
+	QButtonGroup *zoneGroup = new QButtonGroup(this);
+	timeZoneGroup->addButton(_utcZone);
+	timeZoneGroup->addButton(_systemZone);
+	timeZoneGroup->addButton(_customZone);
+	QVBoxLayout *zoneOptions = new QVBoxLayout();
+	zoneOptions->addWidget(_utcZone);
+	zoneOptions->addWidget(_systemZone);
+	zoneOptions->addWidget(_customZone);
+	zoneOptions->addItem(customZoneLayout);
+#endif // ENABLE_TIMEZONES
+
 	QFormLayout *formLayout = new QFormLayout();
 	formLayout->addRow(tr("Speed:"), speedOptions);
 	formLayout->addRow(tr("Elevation:"), elevationOptions);
+#ifdef ENABLE_TIMEZONES
+	formLayout->addRow(tr("Time zone:"), zoneOptions);
+#endif // ENABLE_TIMEZONES
 
 	sourceTabLayout->addLayout(formLayout);
 #else // Q_OS_MAC
 	QFormLayout *speedLayout = new QFormLayout();
 	QFormLayout *elevationLayout = new QFormLayout();
+#ifdef ENABLE_TIMEZONES
+	QFormLayout *timeZoneLayout = new QFormLayout();
+#endif // ENABLE_TIMEZONES
 
 	speedLayout->addWidget(_computedSpeed);
 	speedLayout->addWidget(_reportedSpeed);
@@ -462,8 +500,21 @@ QWidget *OptionsDialog::createDataPage()
 	QGroupBox *elevationBox = new QGroupBox(tr("Elevation"));
 	elevationBox->setLayout(elevationLayout);
 
+#ifdef ENABLE_TIMEZONES
+	timeZoneLayout->addWidget(_utcZone);
+	timeZoneLayout->addWidget(_systemZone);
+	timeZoneLayout->addWidget(_customZone);
+	timeZoneLayout->addItem(customZoneLayout);
+
+	QGroupBox *timeZoneBox = new QGroupBox(tr("Time zone"));
+	timeZoneBox->setLayout(timeZoneLayout);
+#endif // ENABLE_TIMEZONES
+
 	sourceTabLayout->addWidget(speedBox);
 	sourceTabLayout->addWidget(elevationBox);
+#ifdef ENABLE_TIMEZONES
+	sourceTabLayout->addWidget(timeZoneBox);
+#endif // ENABLE_TIMEZONES
 #endif // Q_OS_MAC
 	sourceTabLayout->addStretch();
 	sourceTab->setLayout(sourceTabLayout);
@@ -677,7 +728,7 @@ OptionsDialog::OptionsDialog(Options *options, QWidget *parent)
 void OptionsDialog::accept()
 {
 	_options->palette.setColor(_baseColor->color());
-	_options->palette.setShift(_colorOffset->value());
+	_options->palette.setShift(_colorOffset->value() / 100.0);
 	_options->mapOpacity = _mapOpacity->value();
 	_options->backgroundColor = _backgroundColor->color();
 	_options->trackWidth = _trackWidth->value();
@@ -722,6 +773,13 @@ void OptionsDialog::accept()
 	_options->dataUseDEM = _dataDEMElevation->isChecked();
 	_options->showSecondaryElevation = _showSecondaryElevation->isChecked();
 	_options->showSecondarySpeed = _showSecondarySpeed->isChecked();
+#ifdef ENABLE_TIMEZONES
+	_options->timeZone.setType(_utcZone->isChecked()
+	  ? TimeZoneInfo::UTC : _systemZone->isChecked()
+	  ? TimeZoneInfo::System : TimeZoneInfo::Custom);
+	_options->timeZone.setCustomZone(QTimeZone(_timeZone->currentText()
+	  .toLatin1()));
+#endif // ENABLE_TIMEZONES
 
 	qreal poiRadius = (_options->units == Imperial)
 		? _poiRadius->value() * MIINM : (_options->units == Nautical)
diff --git a/src/GUI/optionsdialog.h b/src/GUI/optionsdialog.h
index 417cac8c..cfcd8319 100644
--- a/src/GUI/optionsdialog.h
+++ b/src/GUI/optionsdialog.h
@@ -5,6 +5,9 @@
 #include "common/config.h"
 #include "palette.h"
 #include "units.h"
+#ifdef ENABLE_TIMEZONES
+#include "timezoneinfo.h"
+#endif // ENABLE_TIMEZONES
 
 class ColorBox;
 class StyleComboBox;
@@ -17,6 +20,7 @@ class QRadioButton;
 class PercentSlider;
 class LimitedComboBox;
 
+
 struct Options {
 	// Appearance
 	Palette palette;
@@ -56,6 +60,9 @@ struct Options {
 	bool dataUseDEM;
 	bool showSecondaryElevation;
 	bool showSecondarySpeed;
+#ifdef ENABLE_TIMEZONES
+	TimeZoneInfo timeZone;
+#endif // ENABLE_TIMEZONES
 	// POI
 	int poiRadius;
 	// System
@@ -103,7 +110,7 @@ private:
 
 	// Appearance
 	ColorBox *_baseColor;
-	QDoubleSpinBox *_colorOffset;
+	PercentSlider *_colorOffset;
 	PercentSlider *_mapOpacity;
 	ColorBox *_backgroundColor;
 	QSpinBox *_trackWidth;
@@ -134,7 +141,6 @@ private:
 	OddSpinBox *_cadenceFilter;
 	OddSpinBox *_powerFilter;
 	QCheckBox *_outlierEliminate;
-
 	QRadioButton *_automaticPause;
 	QRadioButton *_manualPause;
 	QDoubleSpinBox *_pauseSpeed;
@@ -145,6 +151,12 @@ private:
 	QRadioButton *_dataDEMElevation;
 	QCheckBox *_showSecondaryElevation;
 	QCheckBox *_showSecondarySpeed;
+#ifdef ENABLE_TIMEZONES
+	QRadioButton *_utcZone;
+	QRadioButton *_systemZone;
+	QRadioButton *_customZone;
+	QComboBox *_timeZone;
+#endif // ENABLE_TIMEZONES
 	// POI
 	QDoubleSpinBox *_poiRadius;
 	// System
diff --git a/src/GUI/pathitem.cpp b/src/GUI/pathitem.cpp
index 31df4209..1249077f 100644
--- a/src/GUI/pathitem.cpp
+++ b/src/GUI/pathitem.cpp
@@ -21,12 +21,16 @@ static inline unsigned segments(qreal distance)
 	return ceil(distance / GEOGRAPHICAL_MILE);
 }
 
+Units PathItem::_units = Metric;
+#ifdef ENABLE_TIMEZONES
+QTimeZone PathItem::_timeZone = QTimeZone::utc();
+#endif // ENABLE_TIMEZONES
+
 PathItem::PathItem(const Path &path, Map *map, QGraphicsItem *parent)
   : GraphicsItem(parent), _path(path), _map(map)
 {
 	Q_ASSERT(_path.isValid());
 
-	_units = Metric;
 	_digitalZoom = 0;
 	_width = 3;
 	QBrush brush(Qt::SolidPattern);
@@ -352,16 +356,6 @@ void PathItem::showTicks(bool show)
 	updateTicks();
 }
 
-void PathItem::setUnits(Units units)
-{
-	if (_units == units)
-		return;
-
-	prepareGeometryChange();
-	_units = units;
-	updateTicks();
-}
-
 void PathItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
 {
 	Q_UNUSED(event);
diff --git a/src/GUI/pathitem.h b/src/GUI/pathitem.h
index a364f1b2..f142a8fc 100644
--- a/src/GUI/pathitem.h
+++ b/src/GUI/pathitem.h
@@ -1,8 +1,12 @@
 #ifndef PATHITEM_H
 #define PATHITEM_H
 
+#include "common/config.h"
 #include <QGraphicsObject>
 #include <QPen>
+#ifdef ENABLE_TIMEZONES
+#include <QTimeZone>
+#endif // ENABLE_TIMEZONES
 #include "data/path.h"
 #include "markeritem.h"
 #include "units.h"
@@ -28,7 +32,6 @@ public:
 
 	void setMap(Map *map);
 
-	void setUnits(Units units);
 	void setColor(const QColor &color);
 	void setWidth(qreal width);
 	void setStyle(Qt::PenStyle style);
@@ -37,6 +40,13 @@ public:
 	void showMarker(bool show);
 	void showTicks(bool show);
 
+	void updateTicks();
+
+	static void setUnits(Units units) {_units = units;}
+#ifdef ENABLE_TIMEZONES
+	static void setTimeZone(const QTimeZone &zone) {_timeZone = zone;}
+#endif // ENABLE_TIMEZONES
+
 public slots:
 	void moveMarker(qreal distance);
 	void hover(bool hover);
@@ -49,7 +59,10 @@ protected:
 	void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
 	void mousePressEvent(QGraphicsSceneMouseEvent *event);
 
-	Units _units;
+	static Units _units;
+#ifdef ENABLE_TIMEZONES
+	static QTimeZone _timeZone;
+#endif // ENABLE_TIMEZONES
 
 private:
 	const PathSegment *segment(qreal x) const;
@@ -60,7 +73,6 @@ private:
 
 	qreal xInM() const;
 	unsigned tickSize() const;
-	void updateTicks();
 
 	Path _path;
 	Map *_map;
diff --git a/src/GUI/routeitem.cpp b/src/GUI/routeitem.cpp
index 0f83b3ab..a18e4da2 100644
--- a/src/GUI/routeitem.cpp
+++ b/src/GUI/routeitem.cpp
@@ -47,7 +47,6 @@ RouteItem::RouteItem(const Route &route, Map *map, QGraphicsItem *parent)
 	_desc = route.description();
 	_comment = route.comment();
 	_links = route.links();
-	_coordinatesFormat = DecimalDegrees;
 }
 
 void RouteItem::setMap(Map *map)
@@ -58,28 +57,6 @@ void RouteItem::setMap(Map *map)
 	PathItem::setMap(map);
 }
 
-void RouteItem::setUnits(Units u)
-{
-	if (_units == u)
-		return;
-
-	for (int i = 0; i < _waypoints.count(); i++)
-		_waypoints[i]->setToolTipFormat(u, _coordinatesFormat);
-
-	PathItem::setUnits(u);
-}
-
-void RouteItem::setCoordinatesFormat(CoordinatesFormat format)
-{
-	if (_coordinatesFormat == format)
-		return;
-
-	_coordinatesFormat = format;
-
-	for (int i = 0; i < _waypoints.count(); i++)
-		_waypoints[i]->setToolTipFormat(_units, _coordinatesFormat);
-}
-
 void RouteItem::showWaypoints(bool show)
 {
 	for (int i = 0; i < _waypoints.count(); i++)
diff --git a/src/GUI/routeitem.h b/src/GUI/routeitem.h
index 8295201f..e6b20285 100644
--- a/src/GUI/routeitem.h
+++ b/src/GUI/routeitem.h
@@ -19,8 +19,6 @@ public:
 
 	void setMap(Map *map);
 
-	void setUnits(Units u);
-	void setCoordinatesFormat(CoordinatesFormat format);
 	void showWaypoints(bool show);
 	void showWaypointLabels(bool show);
 
@@ -31,7 +29,6 @@ private:
 	QString _desc;
 	QString _comment;
 	QVector<Link> _links;
-	CoordinatesFormat _coordinatesFormat;
 
 	QVector<WaypointItem*> _waypoints;
 };
diff --git a/src/GUI/settings.h b/src/GUI/settings.h
index afb09594..6211c5c1 100644
--- a/src/GUI/settings.h
+++ b/src/GUI/settings.h
@@ -149,6 +149,7 @@
 #define SHOW_SECONDARY_ELEVATION_DEFAULT  false
 #define SHOW_SECONDARY_SPEED_SETTING      "showSecondarySpeed"
 #define SHOW_SECONDARY_SPEED_DEFAULT      false
+#define TIME_ZONE_SETTING                 "timeZone"
 #define POI_RADIUS_SETTING                "poiRadius"
 #define POI_RADIUS_DEFAULT                (int)(IMPERIAL_UNITS() ? MIINM : KMINM)
 #define USE_OPENGL_SETTING                "useOpenGL"
diff --git a/src/GUI/timezoneinfo.h b/src/GUI/timezoneinfo.h
new file mode 100644
index 00000000..62f2708a
--- /dev/null
+++ b/src/GUI/timezoneinfo.h
@@ -0,0 +1,69 @@
+#ifndef TIMEZONEINFO_H
+#define TIMEZONEINFO_H
+
+#include <QTimeZone>
+#include <QDataStream>
+
+class TimeZoneInfo
+{
+public:
+	enum Type {
+		UTC,
+		System,
+		Custom
+	};
+
+	TimeZoneInfo() : _type(UTC), _customZone(QTimeZone::systemTimeZone()) {}
+
+	Type type()  const {return _type;}
+	const QTimeZone &customZone() const {return _customZone;}
+	QTimeZone zone() const
+	{
+		if (_type == UTC)
+			return QTimeZone::utc();
+		else if (_type == System)
+			return QTimeZone::systemTimeZone();
+		else
+			return _customZone;
+	}
+
+	void setType(Type type) {_type = type;}
+	void setCustomZone(const QTimeZone &zone) {_customZone = zone;}
+
+	bool operator==(const TimeZoneInfo &other) const
+	{
+		if (_type == UTC || _type == System)
+			return _type == other._type;
+		else
+			return (other._type == Custom && _customZone == other._customZone);
+	}
+	bool operator!=(const TimeZoneInfo &other) {return !(*this == other);}
+
+private:
+	friend QDataStream& operator<<(QDataStream &out, const TimeZoneInfo &info);
+	friend QDataStream& operator>>(QDataStream &in, TimeZoneInfo &info);
+
+	Type _type;
+	QTimeZone _customZone;
+};
+
+Q_DECLARE_METATYPE(TimeZoneInfo)
+
+inline QDataStream &operator<<(QDataStream &out, const TimeZoneInfo &info)
+{
+	out << static_cast<int>(info._type) << info._customZone;
+	return out;
+}
+
+inline QDataStream &operator>>(QDataStream &in, TimeZoneInfo &info)
+{
+	int t;
+
+	in >> t;
+	info._type = static_cast<TimeZoneInfo::Type>(t);
+	in >> info._customZone;
+
+	return in;
+}
+
+#endif // TIMEZONEINFO_H
diff --git a/src/GUI/trackitem.cpp b/src/GUI/trackitem.cpp
index b4629fd9..32f85c23 100644
--- a/src/GUI/trackitem.cpp
+++ b/src/GUI/trackitem.cpp
@@ -22,7 +22,13 @@ QString TrackItem::info() const
 	if  (_movingTime > 0)
 		tt.insert(tr("Moving time"), Format::timeSpan(_movingTime));
 	if (!_date.isNull())
-		tt.insert(tr("Date"), _date.toString(Qt::SystemLocaleShortDate));
+		tt.insert(tr("Date"),
+#ifdef ENABLE_TIMEZONES
+		  _date.toTimeZone(_timeZone)
+#else // ENABLE_TIMEZONES
+		  _date
+#endif // ENABLE_TIMEZONES
+		  .toString(Qt::SystemLocaleShortDate));
 	if (!_links.isEmpty()) {
 		QString links;
 		for (int i = 0; i < _links.size(); i++) {
diff --git a/src/GUI/waypointitem.cpp b/src/GUI/waypointitem.cpp
index 3e93de96..94b0a5ed 100644
--- a/src/GUI/waypointitem.cpp
+++ b/src/GUI/waypointitem.cpp
@@ -13,6 +13,13 @@
 #define FS(size) \
 	((int)((qreal)size * 1.41))
 
+
+Units WaypointItem::_units = Metric;
+CoordinatesFormat WaypointItem::_format = DecimalDegrees;
+#ifdef ENABLE_TIMEZONES
+QTimeZone WaypointItem::_timeZone = QTimeZone::utc();
+#endif // ENABLE_TIMEZONES
+
 QString WaypointItem::info() const
 {
 	ToolTip tt;
@@ -30,7 +37,12 @@ QString WaypointItem::info() const
 	}
 	if (_waypoint.timestamp().isValid())
 		tt.insert(qApp->translate("WaypointItem", "Date"),
-		  _waypoint.timestamp().toString(Qt::SystemLocaleShortDate));
+#ifdef ENABLE_TIMEZONES
+		  _waypoint.timestamp().toTimeZone(_timeZone)
+#else // ENABLE_TIMEZONES
+		  _waypoint.timestamp()
+#endif // ENABLE_TIMEZONES
+		  .toString(Qt::SystemLocaleShortDate));
 	if (!_waypoint.description().isEmpty())
 		tt.insert(qApp->translate("WaypointItem", "Description"),
 		  _waypoint.description());
@@ -78,9 +90,6 @@ WaypointItem::WaypointItem(const Waypoint &waypoint, Map *map,
 	_font.setPixelSize(FS(_size));
 	_font.setFamily(FONT_FAMILY);
 
-	_units = Metric;
-	_format = DecimalDegrees;
-
 	updateCache();
 
 	setPos(map->ll2xy(waypoint.coordinates()));
@@ -151,12 +160,6 @@ void WaypointItem::setColor(const QColor &color)
 	update();
 }
 
-void WaypointItem::setToolTipFormat(Units units, CoordinatesFormat format)
-{
-	_units = units;
-	_format = format;
-}
-
 void WaypointItem::showLabel(bool show)
 {
 	if (_showLabel == show)
diff --git a/src/GUI/waypointitem.h b/src/GUI/waypointitem.h
index 9646553b..9de99a26 100644
--- a/src/GUI/waypointitem.h
+++ b/src/GUI/waypointitem.h
@@ -1,9 +1,13 @@
 #ifndef WAYPOINTITEM_H
 #define WAYPOINTITEM_H
 
+#include "common/config.h"
 #include <cmath>
 #include <QGraphicsItem>
 #include <QFont>
+#ifdef ENABLE_TIMEZONES
+#include <QTimeZone>
+#endif // ENABLE_TIMEZONES
 #include "data/waypoint.h"
 #include "map/map.h"
 #include "units.h"
@@ -23,7 +27,6 @@ public:
 	void setColor(const QColor &color);
 	void showLabel(bool show);
 	void setDigitalZoom(int zoom) {setScale(pow(2, -zoom));}
-	void setToolTipFormat(Units units, CoordinatesFormat format);
 
 	QPainterPath shape() const {return _shape;}
 	QRectF boundingRect() const {return _shape.boundingRect();}
@@ -32,6 +35,13 @@ public:
 
 	QString info() const;
 
+	static void setUnits(Units units) {_units = units;}
+	static void setCoordinatesFormat(CoordinatesFormat format)
+	  {_format = format;}
+#ifdef ENABLE_TIMEZONES
+	static void setTimeZone(const QTimeZone &zone) {_timeZone = zone;}
+#endif // ENABLE_TIMEZONES
+
 protected:
 	void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
 	void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
@@ -48,8 +58,11 @@ private:
 	QFont _font;
 	QRect _labelBB;
 
-	Units _units;
-	CoordinatesFormat _format;
+	static Units _units;
+	static CoordinatesFormat _format;
+#ifdef ENABLE_TIMEZONES
+	static QTimeZone _timeZone;
+#endif // ENABLE_TIMEZONES
 };
 
 #endif // WAYPOINTITEM_H
diff --git a/src/common/config.h b/src/common/config.h
index f206c782..50c4f8b1 100644
--- a/src/common/config.h
+++ b/src/common/config.h
@@ -18,4 +18,8 @@
 #define ENABLE_GEOJSON
 #endif // QT >= 5.0
 
+#if QT_VERSION >= QT_VERSION_CHECK(5, 2, 0)
+#define ENABLE_TIMEZONES
+#endif // QT >= 5.2
+
 #endif /* CONFIG_H */
diff --git a/src/main.cpp b/src/main.cpp
index 14878bac..f237199d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,4 +1,7 @@
 #include "common/config.h"
+#ifdef ENABLE_TIMEZONES
+#include "GUI/timezoneinfo.h"
+#endif // ENABLE_TIMEZONES
 #include "GUI/app.h"
 
 int main(int argc, char *argv[])
@@ -7,6 +10,9 @@ int main(int argc, char *argv[])
 	QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
 	QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
 #endif // ENABLE_HIDPI
+#ifdef ENABLE_TIMEZONES
+	qRegisterMetaTypeStreamOperators<TimeZoneInfo>("TimeZoneInfo");
+#endif // ENABLE_TIMEZONES
 
 	App app(argc, argv);
 	return app.run();