diff --git a/packages/common/src/i18n/format_date.ts b/packages/common/src/i18n/format_date.ts
index 70f9f33a9a..355298a60f 100644
--- a/packages/common/src/i18n/format_date.ts
+++ b/packages/common/src/i18n/format_date.ts
@@ -382,8 +382,10 @@ function weekGetter(size: number, monthBased = false): DateFormatter {
       const today = date.getDate();
       result = 1 + Math.floor((today + nbDaysBefore1stDayOfMonth) / 7);
     } else {
-      const firstThurs = getFirstThursdayOfYear(date.getFullYear());
       const thisThurs = getThursdayThisWeek(date);
+      // Some days of a year are part of next year according to ISO 8601.
+      // Compute the firstThurs from the year of this week's Thursday
+      const firstThurs = getFirstThursdayOfYear(thisThurs.getFullYear());
       const diff = thisThurs.getTime() - firstThurs.getTime();
       result = 1 + Math.round(diff / 6.048e8);  // 6.048e8 ms per week
     }
diff --git a/packages/common/test/pipes/date_pipe_spec.ts b/packages/common/test/pipes/date_pipe_spec.ts
index 47bfb1b4b1..ba532d5e25 100644
--- a/packages/common/test/pipes/date_pipe_spec.ts
+++ b/packages/common/test/pipes/date_pipe_spec.ts
@@ -71,6 +71,20 @@ import {JitReflector} from '@angular/platform-browser-dynamic/src/compiler_refle
     describe('transform', () => {
       it('should use "mediumDate" as the default format',
          () => expect(pipe.transform('2017-01-11T10:14:39+0000')).toEqual('Jan 11, 2017'));
+
+      it('should return first week if some dates fall in previous year but belong to next year according to ISO 8601 format',
+         () => {
+           expect(pipe.transform('2019-12-28T00:00:00', 'w')).toEqual('52');
+           expect(pipe.transform('2019-12-29T00:00:00', 'w')).toEqual('1');
+           expect(pipe.transform('2019-12-30T00:00:00', 'w')).toEqual('1');
+         });
+
+      it('should return first week if some dates fall in previous leap year but belong to next year according to ISO 8601 format',
+         () => {
+           expect(pipe.transform('2012-12-29T00:00:00', 'w')).toEqual('52');
+           expect(pipe.transform('2012-12-30T00:00:00', 'w')).toEqual('1');
+           expect(pipe.transform('2012-12-31T00:00:00', 'w')).toEqual('1');
+         });
     });
   });
 }