Index: RTC.c
===================================================================
diff -u -r6ec7641862d18619b73daa16f15d0af11e27142a -rbbbc761074f022478088fb5db64a63732773bca9
--- RTC.c	(.../RTC.c)	(revision 6ec7641862d18619b73daa16f15d0af11e27142a)
+++ RTC.c	(.../RTC.c)	(revision bbbc761074f022478088fb5db64a63732773bca9)
@@ -908,10 +908,11 @@
         if ( days >= dayCnt )
         {
             dtTime.months = i + 1;
+            dtTime.days = days - dayCnt;
         }
         dayCnt += daysInMonth[ i ];
     }
-    dtTime.days = days;
+    dtTime.days += 1;  // days will be number of full days in current month so need to add 1 for the partial current day to get day of month
     dtTime.hours = hours;
     dtTime.minutes = mins;
     dtTime.seconds = secs;