diff --git a/tests/app/ui/date-picker/date-picker-tests-native.android.ts b/tests/app/ui/date-picker/date-picker-tests-native.android.ts
index 9ce5500c8..0b1c4353f 100644
--- a/tests/app/ui/date-picker/date-picker-tests-native.android.ts
+++ b/tests/app/ui/date-picker/date-picker-tests-native.android.ts
@@ -5,7 +5,7 @@ export function getNativeYear(datePicker: datePickerModule.DatePicker): number {
 }
 
 export function getNativeMonth(datePicker: datePickerModule.DatePicker): number {
-    return datePicker.android.getMonth();
+    return datePicker.android.getMonth() + 1;
 }
 
 export function getNativeDay(datePicker: datePickerModule.DatePicker): number {
@@ -25,7 +25,7 @@ export function setNativeYear(datePicker: datePickerModule.DatePicker, value: nu
 }
 
 export function setNativeMonth(datePicker: datePickerModule.DatePicker, value: number): void {
-    datePicker.android.updateDate(datePicker.android.getYear(), value, datePicker.android.getDayOfMonth());
+    datePicker.android.updateDate(datePicker.android.getYear(), value - 1, datePicker.android.getDayOfMonth());
 }
 
 export function setNativeDay(datePicker: datePickerModule.DatePicker, value: number): void {
@@ -33,5 +33,5 @@ export function setNativeDay(datePicker: datePickerModule.DatePicker, value: num
 }
 
 export function setNativeDate(datePicker: datePickerModule.DatePicker, year: number, month: number, day: number): void {
-    datePicker.android.updateDate(year, month, day);
+    datePicker.android.updateDate(year, month - 1, day);
 }
diff --git a/tests/app/ui/date-picker/date-picker-tests-native.ios.ts b/tests/app/ui/date-picker/date-picker-tests-native.ios.ts
index bc6b8ca1f..ead0fa337 100644
--- a/tests/app/ui/date-picker/date-picker-tests-native.ios.ts
+++ b/tests/app/ui/date-picker/date-picker-tests-native.ios.ts
@@ -7,7 +7,7 @@ export function getNativeYear(datePicker: datePickerModule.DatePicker): number {
 }
 
 export function getNativeMonth(datePicker: datePickerModule.DatePicker): number {
-    return utils.ios.getter(NSCalendar, NSCalendar.currentCalendar).componentsFromDate(NSCalendarUnit.CalendarUnitYear | NSCalendarUnit.CalendarUnitMonth | NSCalendarUnit.CalendarUnitDay, datePicker.ios.date).month - 1;
+    return utils.ios.getter(NSCalendar, NSCalendar.currentCalendar).componentsFromDate(NSCalendarUnit.CalendarUnitYear | NSCalendarUnit.CalendarUnitMonth | NSCalendarUnit.CalendarUnitDay, datePicker.ios.date).month;
 }
 
 export function getNativeDay(datePicker: datePickerModule.DatePicker): number {
@@ -31,7 +31,7 @@ export function setNativeYear(datePicker: datePickerModule.DatePicker, value: nu
 
 export function setNativeMonth(datePicker: datePickerModule.DatePicker, value: number): void {
     var comps = utils.ios.getter(NSCalendar, NSCalendar.currentCalendar).componentsFromDate(NSCalendarUnit.CalendarUnitYear | NSCalendarUnit.CalendarUnitMonth | NSCalendarUnit.CalendarUnitDay, datePicker.ios.date);
-    comps.month = value + 1;
+    comps.month = value;
     datePicker.ios.setDateAnimated(utils.ios.getter(NSCalendar, NSCalendar.currentCalendar).dateFromComponents(comps), false);
     (<any>datePicker)._changeHandler.valueChanged(datePicker.ios);
 }
@@ -46,7 +46,7 @@ export function setNativeDay(datePicker: datePickerModule.DatePicker, value: num
 export function setNativeDate(datePicker: datePickerModule.DatePicker, year: number, month: number, day: number): void {
     var comps = utils.ios.getter(NSCalendar, NSCalendar.currentCalendar).componentsFromDate(NSCalendarUnit.CalendarUnitYear | NSCalendarUnit.CalendarUnitMonth | NSCalendarUnit.CalendarUnitDay, datePicker.ios.date);
     comps.year = year;
-    comps.month = month + 1;
+    comps.month = month;
     comps.day = day;
     datePicker.ios.setDateAnimated(utils.ios.getter(NSCalendar, NSCalendar.currentCalendar).dateFromComponents(comps), false);
     (<any>datePicker)._changeHandler.valueChanged(datePicker.ios);
diff --git a/tests/app/ui/date-picker/date-picker-tests.ts b/tests/app/ui/date-picker/date-picker-tests.ts
index 2fe55b493..d721b94cb 100644
--- a/tests/app/ui/date-picker/date-picker-tests.ts
+++ b/tests/app/ui/date-picker/date-picker-tests.ts
@@ -89,7 +89,7 @@ export class DatePickerTest extends testModule.UITest<datePickerModule.DatePicke
 
     public test_WhenCreated_MonthIsCurrentMonth() {
         const actualValue = this.testView.month;
-        const expectedValue = currentDate.getMonth();
+        const expectedValue = currentDate.getMonth() + 1;
         TKUnit.assertEqual(actualValue, expectedValue);
     }
 
@@ -99,11 +99,6 @@ export class DatePickerTest extends testModule.UITest<datePickerModule.DatePicke
         TKUnit.assertEqual(actualValue, expectedValue);
     }
 
-    public test_WhenCreated_DateIsCurrentDate() {
-        const expectedValue = currentDate;
-        assertDate(this.testView, expectedValue.getFullYear(), expectedValue.getMonth(), expectedValue.getDate());
-    }
-
     public testYearFromLocalToNative() {
         const expectedValue = 1980;
         this.testView.year = expectedValue;
@@ -129,11 +124,10 @@ export class DatePickerTest extends testModule.UITest<datePickerModule.DatePicke
         const today = new Date(2016, 3, 15);
         this.testView.year = today.getFullYear();
         this.testView.month = today.getMonth();
-
         const expectedValue = today.getDate();
         this.testView.day = expectedValue;
         
-        const expectedDate = new Date(today.getFullYear(), today.getMonth(), expectedValue);
+        const expectedDate = new Date(today.getFullYear(), today.getMonth() - 1, expectedValue);
         TKUnit.assertEqual(this.testView.date.getDate(), expectedDate.getDate(), "Getting Day from date property failed.");
         TKUnit.assertEqual(this.testView.date.getMonth(), expectedDate.getMonth(), "Getting Month from date property failed.");
         TKUnit.assertEqual(this.testView.date.getFullYear(), expectedDate.getFullYear(), "Getting Year from date property failed.");
@@ -146,7 +140,7 @@ export class DatePickerTest extends testModule.UITest<datePickerModule.DatePicke
         
         const expectedValue = today.getMonth();
         this.testView.month = expectedValue;
-        const expectedDate = new Date(today.getFullYear(), expectedValue, today.getDate());
+        const expectedDate = new Date(today.getFullYear(), expectedValue - 1, today.getDate());
         
         TKUnit.assertEqual(this.testView.date.getDate(), expectedDate.getDate(), "Getting Day from date property failed.");
         TKUnit.assertEqual(this.testView.date.getMonth(), expectedDate.getMonth(), "Getting Month from date property failed.");
@@ -160,7 +154,7 @@ export class DatePickerTest extends testModule.UITest<datePickerModule.DatePicke
         
         const expectedValue = 1980;
         this.testView.year = expectedValue;
-        const expectedDate = new Date(1980, current.getMonth(), current.getDate());
+        const expectedDate = new Date(1980, current.getMonth() - 1, current.getDate());
         
         TKUnit.assertEqual(this.testView.date.getDate(), expectedDate.getDate(), "Getting Day from date property failed.");
         TKUnit.assertEqual(this.testView.date.getMonth(), expectedDate.getMonth(), "Getting Month from date property failed.");
@@ -218,7 +212,7 @@ export class DatePickerTest extends testModule.UITest<datePickerModule.DatePicke
         
         datePickerTestsNative.setNativeDate(this.testView, today.getFullYear(), today.getMonth(), expectedValue);
         
-        const expectedDate = new Date(today.getFullYear(), today.getMonth(), expectedValue);
+        const expectedDate = new Date(today.getFullYear(), today.getMonth() - 1, expectedValue);
         TKUnit.assertEqual(this.testView.date.getDate(), expectedDate.getDate(), "Getting Day from date property failed.");
         TKUnit.assertEqual(this.testView.date.getMonth(), expectedDate.getMonth(), "Getting Month from date property failed.");
         TKUnit.assertEqual(this.testView.date.getFullYear(), expectedDate.getFullYear(), "Getting Year from date property failed.");
@@ -230,7 +224,7 @@ export class DatePickerTest extends testModule.UITest<datePickerModule.DatePicke
         
         datePickerTestsNative.setNativeDate(this.testView, today.getFullYear(), expectedValue, today.getDate());
         
-        const expectedDate = new Date(today.getFullYear(), expectedValue, today.getDate());
+        const expectedDate = new Date(today.getFullYear(), expectedValue - 1, today.getDate());
         TKUnit.assertEqual(this.testView.date.getDate(), expectedDate.getDate(), "Getting Day from date property failed.");
         TKUnit.assertEqual(this.testView.date.getMonth(), expectedDate.getMonth(), "Getting Month from date property failed.");
         TKUnit.assertEqual(this.testView.date.getFullYear(), expectedDate.getFullYear(), "Getting Year from date property failed.");
@@ -242,7 +236,7 @@ export class DatePickerTest extends testModule.UITest<datePickerModule.DatePicke
         const expectedValue = 1981;
         datePickerTestsNative.setNativeDate(this.testView, expectedValue, today.getMonth(), today.getDate());
         
-        const expectedDate = new Date(expectedValue, today.getMonth(), today.getDate());
+        const expectedDate = new Date(expectedValue, today.getMonth() - 1, today.getDate());
         TKUnit.assertEqual(this.testView.date.getDate(), expectedDate.getDate(), "Getting Day from date property failed.");
         TKUnit.assertEqual(this.testView.date.getMonth(), expectedDate.getMonth(), "Getting Month from date property failed.");
         TKUnit.assertEqual(this.testView.date.getFullYear(), expectedDate.getFullYear(), "Getting Year from date property failed.");
@@ -254,7 +248,7 @@ export class DatePickerTest extends testModule.UITest<datePickerModule.DatePicke
         const testDay = 24;
         
         datePickerTestsNative.setNativeDate(this.testView, testYear, testMonth, testDay);
-        const expectedDate = new Date(testYear, testMonth, testDay);
+        const expectedDate = new Date(testYear, testMonth - 1, testDay);
         TKUnit.assertEqual(this.testView.date.getDate(), expectedDate.getDate(), "Getting Day from date property failed.");
         TKUnit.assertEqual(this.testView.date.getMonth(), expectedDate.getMonth(), "Getting Month from date property failed.");
         TKUnit.assertEqual(this.testView.date.getFullYear(), expectedDate.getFullYear(), "Getting Year from date property failed.");
diff --git a/tns-core-modules/ui/date-picker/date-picker-common.ts b/tns-core-modules/ui/date-picker/date-picker-common.ts
index 1a091991d..7450268db 100644
--- a/tns-core-modules/ui/date-picker/date-picker-common.ts
+++ b/tns-core-modules/ui/date-picker/date-picker-common.ts
@@ -26,7 +26,7 @@ yearProperty.register(DatePickerBase);
 
 export const monthProperty = new Property<DatePickerBase, number>({
     name: "month",
-    defaultValue: defaultDate.getMonth(),
+    defaultValue: defaultDate.getMonth() + 1,
     valueConverter: v => parseInt(v),
 });
 monthProperty.register(DatePickerBase);
diff --git a/tns-core-modules/ui/date-picker/date-picker.android.ts b/tns-core-modules/ui/date-picker/date-picker.android.ts
index 3b15f7aa3..36782dda4 100644
--- a/tns-core-modules/ui/date-picker/date-picker.android.ts
+++ b/tns-core-modules/ui/date-picker/date-picker.android.ts
@@ -31,8 +31,8 @@ function initializeDateChangedListener(): void {
                 dateChanged = true;
             }
 
-            if (month !== owner.month) {
-                monthProperty.nativeValueChange(owner, month);
+            if (month !== (owner.month - 1)) {
+                monthProperty.nativeValueChange(owner, month + 1);
                 dateChanged = true;
             }
 
@@ -77,42 +77,29 @@ export class DatePicker extends DatePickerBase {
     private updateNativeDate(): void {
         const nativeView = this.nativeViewProtected;
         const year = typeof this.year === "number" ? this.year : nativeView.getYear();
-        const month = typeof this.month === "number" ? this.month : nativeView.getMonth();
+        const month = typeof this.month === "number" ? this.month - 1 : nativeView.getMonth();
         const day = typeof this.day === "number" ? this.day : nativeView.getDayOfMonth();
         this.date = new Date(year, month, day);
     }
 
-    [yearProperty.getDefault](): number {
-        return this.nativeViewProtected.getYear();
-    }
     [yearProperty.setNative](value: number) {
         if (this.nativeViewProtected.getYear() !== value) {
             this.updateNativeDate();
         }
     }
 
-    [monthProperty.getDefault](): number {
-        return this.nativeViewProtected.getMonth();
-    }
     [monthProperty.setNative](value: number) {
-        if (this.nativeViewProtected.getMonth() !== value) {
+        if (this.nativeViewProtected.getMonth() !== (value - 1)) {
             this.updateNativeDate();
         }
     }
 
-    [dayProperty.getDefault](): number {
-        return this.nativeViewProtected.getDayOfMonth();
-    }
     [dayProperty.setNative](value: number) {
         if (this.nativeViewProtected.getDayOfMonth() !== value) {
             this.updateNativeDate();
         }
     }
 
-    [dateProperty.getDefault](): Date {
-        const nativeView = this.nativeViewProtected;
-        return new Date(nativeView.getYear(), nativeView.getMonth(), nativeView.getDayOfMonth());
-    }
     [dateProperty.setNative](value: Date) {
         const nativeView = this.nativeViewProtected;
         if (nativeView.getDayOfMonth() !== value.getDay()
diff --git a/tns-core-modules/ui/date-picker/date-picker.ios.ts b/tns-core-modules/ui/date-picker/date-picker.ios.ts
index 410fc423b..97b670ad9 100644
--- a/tns-core-modules/ui/date-picker/date-picker.ios.ts
+++ b/tns-core-modules/ui/date-picker/date-picker.ios.ts
@@ -25,30 +25,18 @@ export class DatePicker extends DatePickerBase {
         return this.nativeViewProtected;
     }
 
-    [yearProperty.getDefault](): number {
-        return this.nativeViewProtected.date.getFullYear();
-    }
     [yearProperty.setNative](value: number) {
-        this.date = new Date(value, this.month, this.day);
+        this.date = new Date(value, this.month - 1, this.day);
     }
 
-    [monthProperty.getDefault](): number {
-        return this.nativeViewProtected.date.getMonth();
-    }
     [monthProperty.setNative](value: number) {
-        this.date = new Date(this.year, value, this.day);
+        this.date = new Date(this.year, value - 1, this.day);
     }
 
-    [dayProperty.getDefault](): number {
-        return this.nativeViewProtected.date.getDay();
-    }
     [dayProperty.setNative](value: number) {
-        this.date = new Date(this.year, this.month, value);
+        this.date = new Date(this.year, this.month - 1, value);
     }
 
-    [dateProperty.getDefault](): Date {
-        return this.nativeViewProtected.date;
-    }
     [dateProperty.setNative](value: Date) {
         const picker = this.nativeViewProtected;
         const comps = ios.getter(NSCalendar, NSCalendar.currentCalendar).componentsFromDate(NSCalendarUnit.CalendarUnitYear | NSCalendarUnit.CalendarUnitMonth | NSCalendarUnit.CalendarUnitDay, picker.date);
@@ -108,9 +96,8 @@ class UIDatePickerChangeHandlerImpl extends NSObject {
             dateChanged = true;
         }
 
-        const jsMonth = comps.month - 1;
-        if (jsMonth !== owner.month) {
-            monthProperty.nativeValueChange(owner, jsMonth);
+        if (comps.month !== owner.month) {
+            monthProperty.nativeValueChange(owner, comps.month);
             dateChanged = true;
         }
 
@@ -120,7 +107,7 @@ class UIDatePickerChangeHandlerImpl extends NSObject {
         }
 
         if (dateChanged) {
-            dateProperty.nativeValueChange(owner, new Date(comps.year, jsMonth, comps.day));
+            dateProperty.nativeValueChange(owner, new Date(comps.year, comps.month - 1, comps.day));
         }
     }