diff -rBu xforms-1.2.4/demos/flclock.c xforms-1.2.4-new/demos/flclock.c
--- xforms-1.2.4/demos/flclock.c	2013-12-10 11:58:03.000000000 -0500
+++ xforms-1.2.4-new/demos/flclock.c	2017-08-14 18:02:30.743048348 -0400
@@ -62,12 +62,16 @@
     fl_set_object_color( obj, FL_COL1,FL_BLACK );
     fl_set_object_lsize( obj, FL_MEDIUM_SIZE );
     fl_set_object_lstyle( obj, FL_BOLD_STYLE );
+    fl_set_clock_ampm( obj, 1);
+    fl_set_clock_hide_seconds( obj, 0);
 
     obj = fl_add_clock( FL_ANALOG_CLOCK, 30, 70, 220, 200, "" );
     fl_set_object_boxtype( obj, FL_UP_BOX );
 
     obj = fl_add_clock( FL_ANALOG_CLOCK, 260, 70, 220, 200, "" );
     fl_set_object_boxtype( obj, FL_OVAL3D_UPBOX );
+    fl_set_clock_ampm( obj, 1);
+    fl_set_clock_hide_seconds( obj, 1);
 
     obj = fl_add_button( FL_NORMAL_BUTTON, 375, 300, 110, 35, "Exit" );
     fl_set_object_callback( obj, exit_cb, 0 );
diff -rBu xforms-1.2.4/lib/clock.c xforms-1.2.4-new/lib/clock.c
--- xforms-1.2.4/lib/clock.c	2014-06-28 16:34:29.000000000 -0400
+++ xforms-1.2.4-new/lib/clock.c	2017-08-14 18:01:18.484069270 -0400
@@ -44,6 +44,7 @@
     long   offset;
     int    nstep;
     int    am_pm;         /* 12hr clock */
+    int    hide_seconds;
 } SPEC;
 
 
@@ -129,7 +130,8 @@
             FL_Coord w,
             FL_Coord h,
             FL_COLOR fcolor,
-            FL_COLOR bcolor )
+            FL_COLOR bcolor,
+            int hide_seconds )
 {
     double ra;
     double fact = - M_PI / 180.0;
@@ -140,8 +142,10 @@
     ra = fact * ( 180 + 6 * minutes + seconds / 10 );
     draw_hand( x, y, w, h, minhand, ra, fcolor, bcolor );
 
-    ra = fact * ( 180 + 6 * seconds );
-    draw_hand( x, y, w, h, sechand, ra, fcolor, bcolor );
+    if ( !hide_seconds ) {
+        ra = fact * ( 180 + 6 * seconds );
+        draw_hand( x, y, w, h, sechand, ra, fcolor, bcolor );
+    }
 }
 
 
@@ -149,7 +153,7 @@
  ***************************************/
 
 static void
-draw_clock( int      type  FL_UNUSED_ARG,
+draw_clock( int      type,
             FL_Coord x,
             FL_Coord y,
             FL_Coord w,
@@ -187,8 +191,8 @@
     }
 
     show_hands( x + 2 + 0.02 * w, y + 2 + 0.02 * h,
-                w, h, FL_RIGHT_BCOL, FL_RIGHT_BCOL );
-    show_hands( x, y, w, h, col2, FL_LEFT_BCOL );
+                w, h, FL_RIGHT_BCOL, FL_RIGHT_BCOL, type );
+    show_hands( x, y, w, h, col2, FL_LEFT_BCOL, type );
 }
 
 
@@ -201,11 +205,18 @@
     char buf[ 12 ];
     SPEC *sp = ob->spec;
 
-    if ( sp->am_pm )
-        sprintf( buf, "%d:%02d:%02d %s", hours > 12 ? hours - 12 : hours,
-                 minutes, seconds, hours > 12 ? "pm" : "am" );
+    if ( !sp->hide_seconds)
+        if ( sp->am_pm )
+            sprintf( buf, "%d:%02d:%02d %s", hours > 12 ? hours - 12 : hours,
+                     minutes, seconds, hours > 12 ? "pm" : "am" );
+        else
+            sprintf( buf, "%d:%02d:%02d", hours, minutes, seconds );
     else
-        sprintf( buf, "%d:%02d:%02d", hours, minutes, seconds );
+        if ( sp->am_pm )
+            sprintf( buf, "%d:%02d %s", hours > 12 ? hours - 12 : hours,
+                     minutes, hours > 12 ? "pm" : "am" );
+        else
+            sprintf( buf, "%d:%02d", hours, minutes );
 
     fl_draw_text( FL_ALIGN_CENTER, ob->x, ob->y, ob->w, ob->h, ob->col2,
                   ob->lstyle, ob->lsize, buf );
@@ -240,7 +251,7 @@
             if ( ob->type == FL_DIGITAL_CLOCK )
                 draw_digitalclock( ob );
             else
-                draw_clock( ob->type, ob->x, ob->y, ob->w, ob->h,
+                draw_clock( sp->hide_seconds, ob->x, ob->y, ob->w, ob->h,
                             ob->col1, ob->col2 );
             /* fall through */
 
@@ -384,6 +395,23 @@
         fl_redraw_object( ob );
     }
 }
+
+
+/***************************************
+ ***************************************/
+
+void
+fl_set_clock_hide_seconds( FL_OBJECT * ob,
+                           int         hide )
+{
+    SPEC *sp = ob->spec;
+
+    if ( sp->hide_seconds != hide )
+    {
+        sp->hide_seconds = hide;
+        fl_redraw_object( ob );
+    }
+}
 
 
 /*
diff -rBu xforms-1.2.4/lib/include/clock.h xforms-1.2.4-new/lib/include/clock.h
--- xforms-1.2.4/lib/include/clock.h	2014-06-28 16:34:29.000000000 -0400
+++ xforms-1.2.4-new/lib/include/clock.h	2017-08-14 18:06:36.081789358 -0400
@@ -62,4 +62,7 @@
 FL_EXPORT void fl_set_clock_ampm( FL_OBJECT * ob,
                                   int         y );
 
+FL_EXPORT void fl_set_clock_hide_seconds( FL_OBJECT * ob,
+                                          int         y );
+
 #endif /* ! defined FL_CLOCK_H */