diff --git a/src/widgets/widgets/qcalendarwidget.cpp b/src/widgets/widgets/qcalendarwidget.cpp
index 987d25c7210..3e038002292 100644
--- a/src/widgets/widgets/qcalendarwidget.cpp
+++ b/src/widgets/widgets/qcalendarwidget.cpp
@@ -2513,6 +2513,11 @@ void QCalendarWidget::setMinimumDate(QDate date)
     }
 }
 
+void QCalendarWidget::clearMinimumDate()
+{
+    setMinimumDate(QDate::fromJulianDay(1));
+}
+
 /*!
     \property QCalendarWidget::maximumDate
     \brief the maximum date of the currently specified date range.
@@ -2564,6 +2569,11 @@ void QCalendarWidget::setMaximumDate(QDate date)
     }
 }
 
+void QCalendarWidget::clearMaximumDate()
+{
+    setMaximumDate(QDate(9999, 12, 31));
+}
+
 /*!
     Defines a date range by setting the minimumDate and maximumDate
     properties.
diff --git a/src/widgets/widgets/qcalendarwidget.h b/src/widgets/widgets/qcalendarwidget.h
index c7b2854079e..034c95dd624 100644
--- a/src/widgets/widgets/qcalendarwidget.h
+++ b/src/widgets/widgets/qcalendarwidget.h
@@ -21,8 +21,8 @@ class Q_WIDGETS_EXPORT QCalendarWidget : public QWidget
     Q_OBJECT
     Q_ENUMS(Qt::DayOfWeek)
     Q_PROPERTY(QDate selectedDate READ selectedDate WRITE setSelectedDate)
-    Q_PROPERTY(QDate minimumDate READ minimumDate WRITE setMinimumDate)
-    Q_PROPERTY(QDate maximumDate READ maximumDate WRITE setMaximumDate)
+    Q_PROPERTY(QDate minimumDate READ minimumDate WRITE setMinimumDate RESET clearMinimumDate)
+    Q_PROPERTY(QDate maximumDate READ maximumDate WRITE setMaximumDate RESET clearMaximumDate)
     Q_PROPERTY(Qt::DayOfWeek firstDayOfWeek READ firstDayOfWeek WRITE setFirstDayOfWeek)
     Q_PROPERTY(bool gridVisible READ isGridVisible WRITE setGridVisible)
     Q_PROPERTY(SelectionMode selectionMode READ selectionMode WRITE setSelectionMode)
@@ -68,9 +68,11 @@ public:
 
     QDate minimumDate() const;
     void setMinimumDate(QDate date);
+    void clearMinimumDate();
 
     QDate maximumDate() const;
     void setMaximumDate(QDate date);
+    void clearMaximumDate();
 
     Qt::DayOfWeek firstDayOfWeek() const;
     void setFirstDayOfWeek(Qt::DayOfWeek dayOfWeek);
diff --git a/tests/auto/widgets/widgets/qcalendarwidget/tst_qcalendarwidget.cpp b/tests/auto/widgets/widgets/qcalendarwidget/tst_qcalendarwidget.cpp
index 31da429a8ff..2fd9d1b48dc 100644
--- a/tests/auto/widgets/widgets/qcalendarwidget/tst_qcalendarwidget.cpp
+++ b/tests/auto/widgets/widgets/qcalendarwidget/tst_qcalendarwidget.cpp
@@ -110,11 +110,19 @@ void tst_QCalendarWidget::getSetCheck()
     object.setSelectedDate(selectedDate);
     QCOMPARE(minDate, object.selectedDate());
     QVERIFY(selectedDate != object.selectedDate());
+    object.clearMinimumDate();
+    object.setSelectedDate(selectedDate);
+    QCOMPARE(selectedDate, object.selectedDate());
+
     //date should not go beyond the maximum.
     selectedDate = maxDate.addDays(10);
     object.setSelectedDate(selectedDate);
     QCOMPARE(maxDate, object.selectedDate());
     QVERIFY(selectedDate != object.selectedDate());
+    object.clearMaximumDate();
+    object.setSelectedDate(selectedDate);
+    QCOMPARE(selectedDate, object.selectedDate());
+
     //show today
     QDate today = QDate::currentDate();
     object.showToday();