Index: RTC.c
===================================================================
diff -u -r41f2b11a7d12a4d1710625371f24443eb1151684 -r1ad549d610417a594093b226b5c67ac05ee13dea
--- RTC.c	(.../RTC.c)	(revision 41f2b11a7d12a4d1710625371f24443eb1151684)
+++ RTC.c	(.../RTC.c)	(revision 1ad549d610417a594093b226b5c67ac05ee13dea)
@@ -845,14 +845,15 @@
     U32 mins  = dateTime.minutes;
     U32 hrs   = dateTime.hours;
     U32 days  = dateTime.days;
+    U32 mos   = dateTime.months - 1;  // convert months from 1..12 to 0..11
     U32 yrs   = dateTime.years - EPOCH_YEAR;
     U32 lyrs  = ( yrs / 4 ) + ( yrs % 4 > 2 ? 1 : 0 );
     BOOL leap = ( dateTime.years % 4 == 0 ? TRUE : FALSE );
     U32 i, dayCnt;
 
     daysInMonth[ LEAP_YEAR_MONTH ] = ( TRUE == leap ? 29 : 28 );
     dayCnt = 0;
-    for ( i = 0; i < dateTime.months; i++ )
+    for ( i = 0; i <= dateTime.months; i++ )
     {
         dayCnt += daysInMonth[ i ];
     }
@@ -901,7 +902,7 @@
     {
         if ( days >= dayCnt )
         {
-            dtTime.months = i;
+            dtTime.months = i + 1;
         }
         dayCnt += daysInMonth[ i ];
     }