diff -u -r1.105 clock.c
--- clock.c	21 May 2003 08:11:52 -0000	1.105
+++ applets/clock/clock.c	28 Jun 2003 17:48:37 -0000
@@ -37,6 +37,7 @@
 #include <dirent.h>
 #include <string.h>
 #include <time.h>
+#include <locale.h>
 #include <langinfo.h>
 
 #include <panel-applet.h>
@@ -55,6 +56,8 @@
 
 #define NEVER_SENSITIVE "never_sensitive"
 
+#define FIRST_WEEKDAY_IS_MONDAY 1
+
 static const char* KEY_HOUR_FORMAT   = "hour_format";
 static const char* KEY_SHOW_SECONDS  = "show_seconds";
 static const char* KEY_SHOW_DATE     = "show_date";
@@ -482,6 +485,10 @@
 {
 	GtkWindow *window;
 	GtkWidget *calendar;
+        gint first_day;
+
+        setlocale (LC_ALL, "");
+        first_day = (int) *(nl_langinfo (_NL_TIME_FIRST_WEEKDAY));
 
 	window = GTK_WINDOW (gtk_window_new (GTK_WINDOW_TOPLEVEL));
 
@@ -452,6 +459,11 @@
 			  G_CALLBACK (close_on_escape), cd);
 			
 	calendar = gtk_calendar_new ();
+
+        if (first_day == FIRST_WEEKDAY_IS_MONDAY) {
+                gtk_calendar_display_options (GTK_CALENDAR (calendar),
+                                              GTK_CALENDAR_WEEK_START_MONDAY | GTK_CALENDAR_SHOW_HEADING | GTK_CALENDAR_SHOW_DAY_NAMES);
+        }
 
 	gtk_container_add (GTK_CONTAINER (window), calendar);