1 files changed, 4 insertions, 4 deletions
diff --git a/DuetPkg/PcRtc/RealTimeClock.c b/DuetPkg/PcRtc/RealTimeClock.c
index d3c5f31c4d..6666d48a37 100644
--- a/DuetPkg/PcRtc/RealTimeClock.c
+++ b/DuetPkg/PcRtc/RealTimeClock.c
@@ -41,6 +41,8 @@ CompareHMS (
   IN EFI_TIME   *From,
   IN EFI_TIME   *To
   );
+
+INTN  mDayOfMonth[12] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
     
 UINT8
 RtcRead (
@@ -873,10 +875,9 @@ Returns:
 --*/
 {
 
-  INTN  DayOfMonth[12] = { 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
 
   if (Time->Day < 1 ||
-      Time->Day > DayOfMonth[Time->Month - 1] ||
+      Time->Day > mDayOfMonth[Time->Month - 1] ||
       (Time->Month == 2 && (!IsLeapYear (Time) && Time->Day > 28))
       ) {
     return FALSE;
@@ -1002,7 +1003,6 @@ Returns:
 
 --*/
 {
-  UINT8   DayOfMonth[12] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
   BOOLEAN Adjacent = FALSE;
 
   if (From->Year == To->Year) {
@@ -1023,7 +1023,7 @@ Returns:
             Adjacent = TRUE;
           }  
         }
-      } else if (From->Day == DayOfMonth[From->Month - 1]) {
+      } else if (From->Day == mDayOfMonth[From->Month - 1]) {
         if ((CompareHMS(From, To) >= 0)) {
            Adjacent = TRUE;
         }