diff --git a/PcAtChipsetPkg/PcAtChipsetPkg.dec b/PcAtChipsetPkg/PcAtChipsetPkg.dec
index ac09bec6f5..11c31e1d5a 100644
--- a/PcAtChipsetPkg/PcAtChipsetPkg.dec
+++ b/PcAtChipsetPkg/PcAtChipsetPkg.dec
@@ -4,7 +4,7 @@
 # This package is designed to public interfaces and implementation which follows
 # PcAt defacto standard.
 #
-# Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.<BR>
 #
 # This program and the accompanying materials
 # are licensed and made available under the terms and conditions of the BSD License
@@ -116,6 +116,14 @@
   ## This PCD specifies the base address of the IO APIC.
   # @Prompt IO APIC base address.
   gPcAtChipsetPkgTokenSpaceGuid.PcdIoApicBaseAddress|0xFEC00000|UINT32|0x0000000C
+
+  ## This PCD specifies the minimal valid year in RTC.
+  # @Prompt Minimal valid year in RTC.
+  gPcAtChipsetPkgTokenSpaceGuid.PcdMinimalValidYear|1998|UINT16|0x0000000D
+
+  ## This PCD specifies the maximal valid year in RTC.
+  # @Prompt Maximal valid year in RTC.
+  gPcAtChipsetPkgTokenSpaceGuid.PcdMaximalValidYear|2099|UINT16|0x0000000E
   
 [PcdsFixedAtBuild, PcdsPatchableInModule]
   ## Defines the ACPI register set base address.
diff --git a/PcAtChipsetPkg/PcAtChipsetPkg.uni b/PcAtChipsetPkg/PcAtChipsetPkg.uni
index 13bb48f6fd..080f302ea7 100644
Binary files a/PcAtChipsetPkg/PcAtChipsetPkg.uni and b/PcAtChipsetPkg/PcAtChipsetPkg.uni differ
diff --git a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c
index eb1a6567ee..23f8d3b56f 100644
--- a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c
+++ b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcRtc.c
@@ -1,7 +1,7 @@
 /** @file
   RTC Architectural Protocol GUID as defined in DxeCis 0.96.
 
-Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
 This program and the accompanying materials
 are licensed and made available under the terms and conditions of the BSD License
 which accompanies this distribution.  The full text of the license may be found at
@@ -955,8 +955,8 @@ RtcTimeFieldsValid (
   IN EFI_TIME *Time
   )
 {
-  if (Time->Year < 1998 ||
-      Time->Year > 2099 ||
+  if (Time->Year < PcdGet16 (PcdMinimalValidYear) ||
+      Time->Year > PcdGet16 (PcdMaximalValidYear) ||
       Time->Month < 1 ||
       Time->Month > 12 ||
       (!DayValid (Time)) ||
diff --git a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf
index e94fa58e6e..9e5faf75d6 100644
--- a/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf
+++ b/PcAtChipsetPkg/PcatRealTimeClockRuntimeDxe/PcatRealTimeClockRuntimeDxe.inf
@@ -38,6 +38,7 @@
 [Packages]
   MdePkg/MdePkg.dec
   MdeModulePkg/MdeModulePkg.dec
+  PcAtChipsetPkg/PcAtChipsetPkg.dec
 
 [LibraryClasses]
   UefiRuntimeServicesTableLib
@@ -61,5 +62,8 @@
   
 [Pcd]
   gEfiMdeModulePkgTokenSpaceGuid.PcdRealTimeClockUpdateTimeout  ## CONSUMES
+  gPcAtChipsetPkgTokenSpaceGuid.PcdMinimalValidYear             ## CONSUMES
+  gPcAtChipsetPkgTokenSpaceGuid.PcdMaximalValidYear             ## CONSUMES
+
 [UserExtensions.TianoCore."ExtraFiles"]
   PcRtcExtra.uni