diff --git a/include/date.cpp b/include/date.cpp
index a672e2498..483df174f 100755
--- a/include/date.cpp
+++ b/include/date.cpp
@@ -370,7 +370,6 @@ int TDate::day() const
   return (int) (_val % 100L);
 }
 
-
 int TDate::month() const
 {
   return (int) ((_val % 10000L) / 100L);
@@ -384,6 +383,16 @@ int TDate::year() const
 }
 
 
+int TDate::week() const
+
+{ 
+  TDate y(*this);
+  y.set_day(1);
+  y.set_month(1);
+  return (int) ((date2julian()-y.date2julian())/7 )+1;
+}
+
+
 void TDate::addmonth(int nmonth)
 
 {
diff --git a/include/date.h b/include/date.h
index 23b5e28be..1ef110aa6 100755
--- a/include/date.h
+++ b/include/date.h
@@ -83,6 +83,8 @@ public:
   int year() const ;
   // @cmember Ritorna il giorno della settimana (0 = domenica)
   int wday() const ;
+  // @cmember Ritorna la settimana dell'anno
+  int week() const ;
   // @cmember Aggiunge dei mesi
   void addmonth(int nmonth = 1);
   // @cmember Aggiunge degli anni