1 files changed, 12 insertions, 7 deletions
diff --git a/deps/v8/src/builtins/builtins-date.cc b/deps/v8/src/builtins/builtins-date.cc
index ffbeab26a3..6701db28a3 100644
--- a/deps/v8/src/builtins/builtins-date.cc
+++ b/deps/v8/src/builtins/builtins-date.cc
@@ -172,17 +172,20 @@ DateBuffer ToDateString(double time_val, DateCache* date_cache,
   const char* local_timezone = date_cache->LocalTimezone(time_ms);
   switch (mode) {
     case kDateOnly:
-      return FormatDate("%s %s %02d %04d", kShortWeekDays[weekday],
-                        kShortMonths[month], day, year);
+      return FormatDate((year < 0) ? "%s %s %02d %05d" : "%s %s %02d %04d",
+                        kShortWeekDays[weekday], kShortMonths[month], day,
+                        year);
     case kTimeOnly:
       return FormatDate("%02d:%02d:%02d GMT%c%02d%02d (%s)", hour, min, sec,
                         (timezone_offset < 0) ? '-' : '+', timezone_hour,
                         timezone_min, local_timezone);
     case kDateAndTime:
-      return FormatDate("%s %s %02d %04d %02d:%02d:%02d GMT%c%02d%02d (%s)",
-                        kShortWeekDays[weekday], kShortMonths[month], day, year,
-                        hour, min, sec, (timezone_offset < 0) ? '-' : '+',
-                        timezone_hour, timezone_min, local_timezone);
+      return FormatDate(
+          (year < 0) ? "%s %s %02d %05d %02d:%02d:%02d GMT%c%02d%02d (%s)"
+                     : "%s %s %02d %04d %02d:%02d:%02d GMT%c%02d%02d (%s)",
+          kShortWeekDays[weekday], kShortMonths[month], day, year, hour, min,
+          sec, (timezone_offset < 0) ? '-' : '+', timezone_hour, timezone_min,
+          local_timezone);
   }
   UNREACHABLE();
 }
@@ -914,7 +917,9 @@ BUILTIN(DatePrototypeToUTCString) {
   int year, month, day, weekday, hour, min, sec, ms;
   isolate->date_cache()->BreakDownTime(time_ms, &year, &month, &day, &weekday,
                                        &hour, &min, &sec, &ms);
-  SNPrintF(ArrayVector(buffer), "%s, %02d %s %04d %02d:%02d:%02d GMT",
+  SNPrintF(ArrayVector(buffer),
+           (year < 0) ? "%s, %02d %s %05d %02d:%02d:%02d GMT"
+                      : "%s, %02d %s %04d %02d:%02d:%02d GMT",
            kShortWeekDays[weekday], day, kShortMonths[month], year, hour, min,
            sec);
   return *isolate->factory()->NewStringFromAsciiChecked(buffer);