Slow down multiplier for WMTS + Time example

Apps/Sandcastle/gallery/Web Map Tile Service with Time.html

@@ -75,7 +75,7 @@
         clock.stopTime = stop;
         clock.currentTime = start;
         clock.clockRange = Cesium.ClockRange.LOOP_STOP;
-        clock.multiplier = 43200;
+        clock.multiplier = 7200;
         // Make the weather layer semi-transparent to see the underlying geography.
         layer.alpha = 0.5;
     });