diff --git a/core/java/android/widget/CalendarView.java b/core/java/android/widget/CalendarView.java
index ef0eca38517fe..6ef15764bf000 100644
--- a/core/java/android/widget/CalendarView.java
+++ b/core/java/android/widget/CalendarView.java
@@ -16,6 +16,8 @@
 
 package android.widget;
 
+import com.android.internal.R;
+
 import android.annotation.AttrRes;
 import android.annotation.ColorInt;
 import android.annotation.DrawableRes;
@@ -29,17 +31,16 @@ import android.content.res.Configuration;
 import android.content.res.TypedArray;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
+import android.icu.util.Calendar;
+import android.icu.util.TimeZone;
 import android.util.AttributeSet;
 import android.util.Log;
-import com.android.internal.R;
 
 import java.text.DateFormat;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
-import java.util.Calendar;
 import java.util.Date;
 import java.util.Locale;
-import java.util.TimeZone;
 
 /**
  * This class is a calendar widget for displaying and selecting dates. The
diff --git a/core/java/android/widget/CalendarViewLegacyDelegate.java b/core/java/android/widget/CalendarViewLegacyDelegate.java
index 6c78256e55249..91eaab81abcc8 100644
--- a/core/java/android/widget/CalendarViewLegacyDelegate.java
+++ b/core/java/android/widget/CalendarViewLegacyDelegate.java
@@ -27,6 +27,7 @@ import android.graphics.Canvas;
 import android.graphics.Paint;
 import android.graphics.Rect;
 import android.graphics.drawable.Drawable;
+import android.icu.util.Calendar;
 import android.text.format.DateUtils;
 import android.util.AttributeSet;
 import android.util.DisplayMetrics;
@@ -37,7 +38,6 @@ import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
 
-import java.util.Calendar;
 import java.util.Locale;
 
 import libcore.icu.LocaleData;
diff --git a/core/java/android/widget/CalendarViewMaterialDelegate.java b/core/java/android/widget/CalendarViewMaterialDelegate.java
index ba8779d768d99..b752eb689c2f1 100644
--- a/core/java/android/widget/CalendarViewMaterialDelegate.java
+++ b/core/java/android/widget/CalendarViewMaterialDelegate.java
@@ -19,11 +19,10 @@ package android.widget;
 import android.annotation.StyleRes;
 import android.content.Context;
 import android.graphics.Rect;
+import android.icu.util.Calendar;
 import android.util.AttributeSet;
 import android.widget.DayPickerView.OnDaySelectedListener;
 
-import java.util.Calendar;
-
 class CalendarViewMaterialDelegate extends CalendarView.AbstractCalendarViewDelegate {
     private final DayPickerView mDayPickerView;
 
diff --git a/core/java/android/widget/DatePicker.java b/core/java/android/widget/DatePicker.java
index 0c5edc5f2f81b..8613f9989abcc 100644
--- a/core/java/android/widget/DatePicker.java
+++ b/core/java/android/widget/DatePicker.java
@@ -16,11 +16,15 @@
 
 package android.widget;
 
+import com.android.internal.R;
+
 import android.annotation.Nullable;
 import android.annotation.Widget;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.TypedArray;
+import android.icu.util.Calendar;
+import android.icu.util.TimeZone;
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.util.AttributeSet;
@@ -28,11 +32,7 @@ import android.util.SparseArray;
 import android.view.View;
 import android.view.accessibility.AccessibilityEvent;
 
-import com.android.internal.R;
-
-import java.util.Calendar;
 import java.util.Locale;
-import java.util.TimeZone;
 
 /**
  * Provides a widget for selecting a date.
diff --git a/core/java/android/widget/DatePickerCalendarDelegate.java b/core/java/android/widget/DatePickerCalendarDelegate.java
index 0a23b34b91953..2c80f2811cacd 100755
--- a/core/java/android/widget/DatePickerCalendarDelegate.java
+++ b/core/java/android/widget/DatePickerCalendarDelegate.java
@@ -26,6 +26,7 @@ import android.content.res.Resources;
 import android.content.res.TypedArray;
 import android.icu.text.DisplayContext;
 import android.icu.text.SimpleDateFormat;
+import android.icu.util.Calendar;
 import android.os.Parcelable;
 import android.text.format.DateFormat;
 import android.text.format.DateUtils;
@@ -40,7 +41,6 @@ import android.view.accessibility.AccessibilityEvent;
 import android.widget.DayPickerView.OnDaySelectedListener;
 import android.widget.YearPickerView.OnYearSelectedListener;
 
-import java.util.Calendar;
 import java.util.Locale;
 
 /**
diff --git a/core/java/android/widget/DatePickerSpinnerDelegate.java b/core/java/android/widget/DatePickerSpinnerDelegate.java
index d8a3c5638b725..17af014c51191 100644
--- a/core/java/android/widget/DatePickerSpinnerDelegate.java
+++ b/core/java/android/widget/DatePickerSpinnerDelegate.java
@@ -19,6 +19,7 @@ package android.widget;
 import android.content.Context;
 import android.content.res.Configuration;
 import android.content.res.TypedArray;
+import android.icu.util.Calendar;
 import android.os.Parcelable;
 import android.text.InputType;
 import android.text.TextUtils;
@@ -37,7 +38,6 @@ import java.text.DateFormatSymbols;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.Arrays;
-import java.util.Calendar;
 import java.util.Locale;
 
 import libcore.icu.ICU;
diff --git a/core/java/android/widget/DayPickerPagerAdapter.java b/core/java/android/widget/DayPickerPagerAdapter.java
index 34d81411d03c1..f748d3aad0381 100644
--- a/core/java/android/widget/DayPickerPagerAdapter.java
+++ b/core/java/android/widget/DayPickerPagerAdapter.java
@@ -26,14 +26,13 @@ import android.annotation.Nullable;
 import android.content.Context;
 import android.content.res.ColorStateList;
 import android.content.res.TypedArray;
+import android.icu.util.Calendar;
 import android.util.SparseArray;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.SimpleMonthView.OnDayClickListener;
 
-import java.util.Calendar;
-
 /**
  * An adapter for a list of {@link android.widget.SimpleMonthView} items.
  */
diff --git a/core/java/android/widget/DayPickerView.java b/core/java/android/widget/DayPickerView.java
index f376fb1cb38a6..7e950f7856000 100644
--- a/core/java/android/widget/DayPickerView.java
+++ b/core/java/android/widget/DayPickerView.java
@@ -25,6 +25,7 @@ import android.annotation.Nullable;
 import android.content.Context;
 import android.content.res.ColorStateList;
 import android.content.res.TypedArray;
+import android.icu.util.Calendar;
 import android.util.AttributeSet;
 import android.util.MathUtils;
 import android.view.LayoutInflater;
@@ -32,7 +33,6 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityManager;
 
-import java.util.Calendar;
 import java.util.Locale;
 
 import libcore.icu.LocaleData;
diff --git a/core/java/android/widget/SimpleMonthView.java b/core/java/android/widget/SimpleMonthView.java
index 85f1c55e44170..3a63e28cf0933 100644
--- a/core/java/android/widget/SimpleMonthView.java
+++ b/core/java/android/widget/SimpleMonthView.java
@@ -32,6 +32,7 @@ import android.graphics.Rect;
 import android.graphics.Typeface;
 import android.icu.text.DisplayContext;
 import android.icu.text.SimpleDateFormat;
+import android.icu.util.Calendar;
 import android.os.Bundle;
 import android.text.TextPaint;
 import android.text.format.DateFormat;
@@ -48,7 +49,6 @@ import android.view.accessibility.AccessibilityNodeInfo;
 import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
 
 import java.text.NumberFormat;
-import java.util.Calendar;
 import java.util.Locale;
 
 import libcore.icu.LocaleData;
diff --git a/core/java/android/widget/YearPickerView.java b/core/java/android/widget/YearPickerView.java
index 96624d2f0617e..a3f5a67baca17 100644
--- a/core/java/android/widget/YearPickerView.java
+++ b/core/java/android/widget/YearPickerView.java
@@ -16,18 +16,17 @@
 
 package android.widget;
 
+import com.android.internal.R;
+
 import android.content.Context;
 import android.content.res.Resources;
+import android.icu.util.Calendar;
 import android.util.AttributeSet;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.accessibility.AccessibilityEvent;
 
-import java.util.Calendar;
-
-import com.android.internal.R;
-
 /**
  * Displays a selectable list of years.
  */