diff --git a/TODO.md b/TODO.md
index b408e3b..b055503 100644
--- a/TODO.md
+++ b/TODO.md
@@ -16,6 +16,10 @@
 - Change io stuff
   - Find name for styled interactive elements
   - Find name for io module with nested class names 
+- Change demo module
+  - Keep placeholder and demo stuff
+  - Move other things
+  - Prevent styles to be global
 
 # Content
 
@@ -132,6 +136,4 @@
           - [ ] noscript
           - [ ] template
           - [ ] slot
-          - [ ] canvas
-- *Clock*
-  - Add overlays to better distinguish day, week and year
\ No newline at end of file
+          - [ ] canvas
\ No newline at end of file
diff --git a/source/screens/demo/examples/clock.liquid b/source/screens/demo/examples/clock.liquid
index 7dc6998..a4bd20d 100644
--- a/source/screens/demo/examples/clock.liquid
+++ b/source/screens/demo/examples/clock.liquid
@@ -7,81 +7,162 @@ tags:
 {% layout 'hippie/simple.liquid' %}
 
 {% block body %}
+<header class="io pos_fix pin_top pin_right pin_left">
+	<button id="tglFormat" title="Toggle hour display">12-Stunden-Format</button>
+	<button id="tglSections" title="Toggle sections">Abschnitte</button>
+</header>
 <main>
-	<canvas id="rings" width="512" height="512"></canvas>
-	<p>
-		<button id="tglFormat">12-Stunden-Format</button>
-	</p>
+	<div class="wrap">
+		<canvas id="background" width="768" height="768"></canvas>
+		<canvas id="rings" width="768" height="768"></canvas>
+	</div>
 </main>
 {% endblock %}
 
 {% block script %}
 <script>
-	// Page script
-	const canvas = document.getElementById('rings');
-	const ctx = canvas.getContext('2d');
+	const canvasBkg = document.getElementById('background');
+	const ctxBkg = canvasBkg.getContext('2d');
+	const canvasRings = document.getElementById('rings');
+	const ctxRings = canvasRings.getContext('2d');
+	const wrap = document.querySelector('.wrap');
+
 	let is24HourFormat = true;
-	const colorDayOfWeek = getComputedStyle(document.documentElement).getPropertyValue('--clock-color-yellow').trim();
-	const colorDayOfMonth = getComputedStyle(document.documentElement).getPropertyValue('--clock-color-orange').trim();
-	const colorMonth = getComputedStyle(document.documentElement).getPropertyValue('--clock-color-pink').trim();
+	let drawSections = false;
+	let currentDate = new Date();
+	let currentMonth = currentDate.getMonth() + 1; // Get current month (0-11)
+	let daysInCurrentMonth = daysInMonth(currentMonth, currentDate.getFullYear());
+
+	const outerMargin = 8;
+	const ringWidth = 16;
+	const ringGap = 8;
+	let centerX = canvasRings.width / 2;
+	let centerY = canvasRings.height / 2;
+	let maxSize = (canvasRings.width / 2 - ringWidth / 2) - outerMargin;
+
+	resizeClock();
+
+	const rings = [
+		{
+			radius: maxSize,
+			color: 'black'
+		},
+		{
+			radius: maxSize - (ringWidth + ringGap),
+			color: 'lightgrey'
+		},
+		{
+			radius: maxSize - (ringWidth + ringGap) * 2,
+			color: 'white'
+		},
+		{
+			radius: maxSize - (ringWidth + ringGap) * 3 - ringGap,
+			color: getComputedStyle(document.documentElement).getPropertyValue('--clock-color-yellow').trim()
+		},
+		{
+			radius: maxSize - (ringWidth + ringGap) * 4 - ringGap * 2,
+			color: getComputedStyle(document.documentElement).getPropertyValue('--clock-color-orange').trim()
+		},
+		{
+			radius: maxSize - (ringWidth + ringGap) * 5 - ringGap * 3,
+			color: getComputedStyle(document.documentElement).getPropertyValue('--clock-color-pink').trim()
+		},
+		{
+			radius: maxSize - (ringWidth + ringGap) * 6 - ringGap * 3,
+			color: getComputedStyle(document.documentElement).getPropertyValue('--clock-color-purple').trim()
+		}
+	];
+	const groups = [
+		{
+			radius: rings[1].radius,
+			color: `rgba(0, 0, 0, .1)`,
+			width: 72
+		},
+		{
+			radius: rings[3].radius,
+			color: `rgba(0, 0, 0, .2)`,
+			width: ringWidth + ringGap
+		},
+		{
+			radius: rings[4].radius,
+			color: `rgba(0, 0, 0, .3)`,
+			width: ringWidth + ringGap
+		},
+		{
+			radius: maxSize - (ringWidth + ringGap) * 6 - ringGap - ringGap / 2,
+			color: `rgba(0, 0, 0, .4)`,
+			width: ringWidth * 2 + ringGap * 2
+		}
+	];
+	const sectionMarkerColor = `rgba(0, 0, 0, .2)`;
+	let sections = [
+		{
+			amount: 60,
+			radius: maxSize,
+			width: 1
+		},
+		{
+			amount: 60,
+			radius: rings[1].radius,
+			width: 1
+		},
+		{
+			amount: is24HourFormat ? 24 : 12,
+			radius: rings[2].radius,
+			width: 3
+		},
+		{
+			amount: 7,
+			radius: rings[3].radius,
+			width: 5
+		},
+		{
+			amount: daysInCurrentMonth,
+			radius: rings[4].radius,
+			width: 3
+		},
+		{
+			amount: 365,
+			radius: rings[5].radius,
+			width: 1
+		},
+		{
+			amount: 12,
+			radius: rings[6].radius,
+			width: 3
+		}
+	];
 
 	document.getElementById('tglFormat').addEventListener('click', () => {
 		is24HourFormat = !is24HourFormat;
 		document.getElementById('tglFormat').textContent = is24HourFormat ? '12-Stunden-Format' : '24-Stunden-Format';
+		sections[2].amount = is24HourFormat ? 24 : 12;
+		drawBackground();
 	});
 
-	function drawRings(seconds, minutes, hours, dayOfWeek, dayOfMonth, month, daysInCurrentMonth) {
-		const centerX = canvas.width / 2;
-		const centerY = canvas.height / 2;
-		const lineWidth = 16;
-		const lineGap = 8;
-		const maxSize = canvas.width / 2 - lineWidth;
+	document.getElementById('tglSections').addEventListener('click', () => {
+		drawSections = !drawSections;
+		drawBackground();
+	});
 
-		ctx.clearRect(0, 0, canvas.width, canvas.height);
+	// FIXME: Konstanten mit maxSize werden nicht verändert
+	window.addEventListener('resize', resizeClock);
 
-		function drawArc(value, maxValue, radius, strokeStyle) {
-			const startAngle = -0.5 * Math.PI; // Start at the top
-			const endAngle = startAngle + (2 * Math.PI * (value / maxValue));
-
-			ctx.beginPath();
-			ctx.arc(centerX, centerY, radius, startAngle, endAngle, false);
-			ctx.lineWidth = 16;
-			ctx.strokeStyle = strokeStyle;
-			ctx.stroke();
-		}
-
-		drawArc(
-			(seconds === 0) ? 60 : seconds,
-			60,
-			maxSize,
-			'black'
-		);
-		drawArc(
-			(minutes === 0) ? 60 : minutes,
-			60,
-			maxSize - lineWidth - lineGap,
-			'lightgrey'
-		);
-		drawArc(
-			is24HourFormat ? hours : hours % 12,
-			is24HourFormat ? 24 : 12,
-			maxSize - (lineWidth + lineGap) * 2,
-			'white'
-		);
-		drawArc(dayOfWeek, 7, maxSize - (lineWidth + lineGap) * 3, colorDayOfWeek);
-		drawArc(dayOfMonth, daysInCurrentMonth, maxSize - (lineWidth + lineGap) * 4, colorDayOfMonth);
-		drawArc(month, 12, maxSize - (lineWidth + lineGap) * 5, colorMonth);
-	}
+	drawBackground();
+	updateRings();
+	// TODO: TimeDisplay nutzen, ev. erweitern oder ähnliche Umsetzung anwenden
+	setInterval(updateRings, 1000);
 
 	function updateRings() {
-		const currentDate = new Date();
+		currentDate = new Date();
 		const currentSeconds = currentDate.getSeconds();
 		const currentMinutes = currentDate.getMinutes();
 		const currentHours = currentDate.getHours();
 		const currentDayOfWeek = getNumericWeekday(currentDate);
 		const currentDayOfMonth = currentDate.getDate();
-		const currentMonth = currentDate.getMonth() + 1; // Get current month (0-11)
-		const daysInCurrentMonth = daysInMonth(currentMonth, currentDate.getFullYear());
+		const currentDayOfYear = getNumericYearDay(currentDate);
+		currentMonth = currentDate.getMonth() + 1; // Get current month (0-11)
+		daysInCurrentMonth = daysInMonth(currentMonth, currentDate.getFullYear());
 
 		drawRings(
 			currentSeconds,
@@ -90,6 +171,7 @@ tags:
 			currentDayOfWeek,
 			currentDayOfMonth,
 			currentMonth,
+			currentDayOfYear,
 			daysInCurrentMonth
 		);
 	}
@@ -100,11 +182,116 @@ tags:
 		return (weekday === 0) ? 7 : weekday;
 	}
 
+	function getNumericYearDay(date) {
+		const start = new Date(date.getFullYear(), 0, 0);
+		return Math.floor((date - start) / 86400000);
+	}
+
 	function daysInMonth(month, year) {
 		return new Date(year, month, 0).getDate();
 	}
 
-	updateRings();
-	setInterval(updateRings, 1000);
+	function drawArc(value, maxValue, radius, strokeStyle) {
+		const startAngle = -0.5 * Math.PI; // Start at the top
+		const endAngle = startAngle + (2 * Math.PI * (value / maxValue));
+
+		ctxRings.lineWidth = 16;
+		ctxRings.strokeStyle = strokeStyle;
+		ctxRings.beginPath();
+		ctxRings.arc(centerX, centerY, radius, startAngle, endAngle, false);
+		ctxRings.stroke();
+	}
+
+	// TODO: Array rings nutzen
+	function drawRings(seconds, minutes, hours, dayOfWeek, dayOfMonth, month, dayOfYear, daysInCurrentMonth) {
+		ctxRings.clearRect(0, 0, canvasRings.width, canvasRings.height);
+
+		drawArc(
+			(seconds === 0) ? 60 : seconds,
+			60,
+			rings[0].radius,
+			rings[0].color
+		);
+		drawArc(
+			(minutes === 0) ? 60 : minutes,
+			60,
+			rings[1].radius,
+			rings[1].color
+		);
+		drawArc(
+			// is24HourFormat ? ((hours === 0) ? 24 : hours) : hours % 12,
+			is24HourFormat ? hours : hours % 12,
+			is24HourFormat ? 24 : 12,
+			rings[2].radius,
+			rings[2].color
+		);
+		drawArc(dayOfWeek, 7, rings[3].radius, rings[3].color);
+		drawArc(dayOfMonth, daysInCurrentMonth, rings[4].radius, rings[4].color);
+		drawArc(dayOfYear, 365, rings[5].radius, rings[5].color);
+		drawArc(month, 12, rings[6].radius, rings[6].color);
+	}
+
+	function drawBackground() {
+		ctxBkg.clearRect(0, 0, canvasBkg.width, canvasBkg.height);
+
+		groups.forEach((section) => {
+			ctxBkg.strokeStyle = section.color;
+			ctxBkg.lineWidth = section.width;
+			ctxBkg.beginPath();
+			ctxBkg.arc(centerX, centerY, section.radius, 0, 2 * Math.PI);
+			ctxBkg.stroke();
+		});
+
+		if (drawSections) {
+			sections.forEach((marker) => {
+				for (let i = 0; i < marker.amount; i++) {
+					const angle = (i * (360 / marker.amount) - 90) * (Math.PI / 180); // -90 to start at top
+					const outerRadius = marker.radius + ringWidth / 2;
+					const outerX = centerX + outerRadius * Math.cos(angle);
+					const outerY = centerY + outerRadius * Math.sin(angle);
+					const innerRadius = marker.radius - ringWidth / 2;
+					const innerX = centerX + innerRadius * Math.cos(angle);
+					const innerY = centerY + innerRadius * Math.sin(angle);
+
+					ctxBkg.strokeStyle = sectionMarkerColor;
+					ctxBkg.lineWidth = marker.width;
+					ctxBkg.beginPath();
+					ctxBkg.moveTo(outerX, outerY);
+					ctxBkg.lineTo(innerX, innerY);
+					ctxBkg.stroke();
+				}
+			});
+		}
+	}
+
+	function resizeClock() {
+		const height = window.innerHeight;
+		const width = window.innerWidth;
+		const windowDimension = {
+			value: Math.min(height, width),
+			smaller: height < width ? 'height' : 'width'
+		};
+		const clockSize = Math.floor(windowDimension.value * 0.9);
+
+		canvasBkg.style.width = clockSize + 'px';
+		canvasBkg.style.height = clockSize + 'px';
+		canvasRings.style.width = clockSize + 'px';
+		canvasRings.style.height = clockSize + 'px';
+		canvasBkg.width = clockSize;
+		canvasBkg.height = clockSize;
+		canvasRings.width = clockSize;
+		canvasRings.height = clockSize;
+
+		centerX = canvasRings.width / 2;
+		centerY = canvasRings.height / 2;
+		maxSize = (canvasRings.width / 2 - ringWidth / 2) - outerMargin;
+
+		wrap.style.width = clockSize + 'px';
+		wrap.style.height = clockSize + 'px';
+
+		console.debug(windowDimension);
+		console.debug('Clock size: ', clockSize);
+		console.debug('Radius: ', maxSize);
+	}
 </script>
 {% endblock %}
\ No newline at end of file
diff --git a/source/style/modules/_clock.scss b/source/style/modules/_clock.scss
index fe361b7..4caa66e 100644
--- a/source/style/modules/_clock.scss
+++ b/source/style/modules/_clock.scss
@@ -14,10 +14,23 @@
 
 .body_clock {
 	main {
-		@extend .sec_main_center;
 		display: flex;
 		flex-flow: column nowrap;
 		justify-content: center;
+		align-items: center;
+		height: 100vh;
+		width: 100%;
+		overflow: hidden;
+	}
+
+	.wrap {
+		position: relative;
+	}
+
+	canvas {
+		position: absolute;
+		top: 0;
+		left: 0;
 	}
 
 	p {
diff --git a/source/style/modules/demo/_demo_module.scss b/source/style/modules/demo/_demo_module.scss
index f7ab191..679de47 100644
--- a/source/style/modules/demo/_demo_module.scss
+++ b/source/style/modules/demo/_demo_module.scss
@@ -270,21 +270,21 @@
 	padding-left: hippie.$space_double;
 }
 
-// Index
-// -----------------------------------------------------------------------------
-.wrap {
-	display: flex;
-	// height: 100%;
-	align-items: center;
-	justify-content: center;
-}
-
-.hello {
-	flex: 0 1 auto;
-	width: 80%;
-
-	ul {
-		padding: 1em 5em;
-		background-color: hippie.$color_darker;
+#demo {
+	.wrap {
+		display: flex;
+		// height: 100%;
+		align-items: center;
+		justify-content: center;
 	}
-}
+
+	.hello {
+		flex: 0 1 auto;
+		width: 80%;
+
+		ul {
+			padding: 1em 5em;
+			background-color: hippie.$color_darker;
+		}
+	}
+}
\ No newline at end of file