tweak hours

app/util.ts

@@ -16,13 +16,13 @@ export function updateBackground(): void {
         color1 = 'rgba(255, 140, 0, 0.6)'; // Dark orange (sunrise)
         color2 = 'rgba(135, 206, 250, 0.6)'; // Sky blue (light sky)
         color3 = '#F0E68C'; // Light khaki (morning light)
-    } else if (hour >= 7 && hour < 17) {
+    } else if (hour >= 7 && hour < 16) {
         // Daylight
         color1 = 'rgba(135, 206, 250, 0.6)'; // Light sky blue (high sky)
         color2 = 'rgba(255, 255, 255, 0.6)'; // White (sun)
         color3 = '#87CEEB'; // Sky blue (clear day)
         cloudStyle = ', radial-gradient(circle at 10% 30%, rgba(255, 255, 255, 0.8), transparent 80%), radial-gradient(circle at 90% 40%, rgba(255, 255, 255, 0.8), transparent 80%)';
-    } else if (hour >= 17 && hour < 20) {
+    } else if (hour >= 16 && hour < 20) {
         // Dusk
         color1 = 'rgba(250, 128, 114, 0.6)'; // Salmon (sunset)
         color2 = 'rgba(100, 149, 237, 0.6)'; // Cornflower blue (evening sky)