From 4ac5c85f3d4716ffd6d1a858231801519ed0062f Mon Sep 17 00:00:00 2001
From: Miles Malerba <mmalerba@google.com>
Date: Tue, 17 Oct 2017 11:14:09 -0700
Subject: [PATCH 1/2] fix(datepicker): correct DST issues on IE 11

---
 src/lib/core/datetime/native-date-adapter.ts | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/src/lib/core/datetime/native-date-adapter.ts b/src/lib/core/datetime/native-date-adapter.ts
index 22fd954693b2..40c0c15e3ec8 100644
--- a/src/lib/core/datetime/native-date-adapter.ts
+++ b/src/lib/core/datetime/native-date-adapter.ts
@@ -6,6 +6,7 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
+import {Platform} from '@angular/cdk/platform';
 import {Inject, Injectable, Optional} from '@angular/core';
 import {extendObject} from '../util/object-extend';
 import {DateAdapter, MAT_DATE_LOCALE} from './date-adapter';
@@ -60,18 +61,21 @@ function range<T>(length: number, valueFunction: (index: number) => T): T[] {
 /** Adapts the native JS Date for use with cdk-based components that work with dates. */
 @Injectable()
 export class NativeDateAdapter extends DateAdapter<Date> {
-  constructor(@Optional() @Inject(MAT_DATE_LOCALE) matDateLocale: string) {
-    super();
-    super.setLocale(matDateLocale);
-  }
-
   /**
    * Whether to use `timeZone: 'utc'` with `Intl.DateTimeFormat` when formatting dates.
    * Without this `Intl.DateTimeFormat` sometimes chooses the wrong timeZone, which can throw off
    * the result. (e.g. in the en-US locale `new Date(1800, 7, 14).toLocaleDateString()`
    * will produce `'8/13/1800'`.
    */
-  useUtcForDisplay = true;
+  useUtcForDisplay: boolean;
+
+  constructor(@Optional() @Inject(MAT_DATE_LOCALE) matDateLocale: string, platform: Platform) {
+    super();
+    super.setLocale(matDateLocale);
+
+    // IE does its own time zone correction, so we disable this on IE.
+    this.useUtcForDisplay = !platform.TRIDENT;
+  }
 
   getYear(date: Date): number {
     return date.getFullYear();

From b2701e173bf686ea17e148e4da037912cf8984a8 Mon Sep 17 00:00:00 2001
From: Miles Malerba <mmalerba@google.com>
Date: Tue, 17 Oct 2017 12:18:04 -0700
Subject: [PATCH 2/2] fix tests

---
 src/lib/core/datetime/index.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/lib/core/datetime/index.ts b/src/lib/core/datetime/index.ts
index 0059b79b50bc..e5ef807f498a 100644
--- a/src/lib/core/datetime/index.ts
+++ b/src/lib/core/datetime/index.ts
@@ -6,10 +6,11 @@
  * found in the LICENSE file at https://angular.io/license
  */
 
+import {PlatformModule} from '@angular/cdk/platform';
 import {NgModule} from '@angular/core';
 import {DateAdapter, MAT_DATE_LOCALE_PROVIDER} from './date-adapter';
-import {NativeDateAdapter} from './native-date-adapter';
 import {MAT_DATE_FORMATS} from './date-formats';
+import {NativeDateAdapter} from './native-date-adapter';
 import {MAT_NATIVE_DATE_FORMATS} from './native-date-formats';
 
 export * from './date-adapter';
@@ -19,6 +20,7 @@ export * from './native-date-formats';
 
 
 @NgModule({
+  imports: [PlatformModule],
   providers: [
     {provide: DateAdapter, useClass: NativeDateAdapter},
     MAT_DATE_LOCALE_PROVIDER