React Clock-Konzept

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6 November 2025

Interaktive Weltkarte mit React und D3.js

HTML

CSS

@import url("https://fonts.googleapis.com/css2?family=Quicksand:wght@300..700&display=swap");
* {
  box-sizing: border-box;
  font-family: "Quicksand", sans-serif;
}
body {
  --digit-active-color: #35c4ff;
  --digit-color: #35c2ff7c;
  --digit-width: 55px;
  --digit-height: 10px;
  --main-color: #0d0d0c;
  --seconday-color: #1c1c1c;
  --main-gradient: linear-gradient(90deg, #35c4ff 0%, #b24eff 100%);
  margin: 0;
  padding: 0;
  background-color: var(--main-color);
  color: white;
  background-size: cover;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' version='1.1' xmlns:xlink='http://www.w3.org/1999/xlink' xmlns:svgjs='http://svgjs.dev/svgjs' width='800' height='560' preserveAspectRatio='none' viewBox='0 0 800 560'%3e%3cg mask='url(%26quot%3b%23SvgjsMask1059%26quot%3b)' fill='none'%3e%3cuse xlink:href='%23SvgjsSymbol1066' x='0' y='0'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsSymbol1066' x='720' y='0'%3e%3c/use%3e%3c/g%3e%3cdefs%3e%3cmask id='SvgjsMask1059'%3e%3crect width='800' height='560' fill='white'%3e%3c/rect%3e%3c/mask%3e%3cpath d='M-1 0 a1 1 0 1 0 2 0 a1 1 0 1 0 -2 0z' id='SvgjsPath1065'%3e%3c/path%3e%3cpath d='M-3 0 a3 3 0 1 0 6 0 a3 3 0 1 0 -6 0z' id='SvgjsPath1063'%3e%3c/path%3e%3cpath d='M-5 0 a5 5 0 1 0 10 0 a5 5 0 1 0 -10 0z' id='SvgjsPath1062'%3e%3c/path%3e%3cpath d='M2 -2 L-2 2z' id='SvgjsPath1060'%3e%3c/path%3e%3cpath d='M6 -6 L-6 6z' id='SvgjsPath1061'%3e%3c/path%3e%3cpath d='M30 -30 L-30 30z' id='SvgjsPath1064'%3e%3c/path%3e%3c/defs%3e%3csymbol id='SvgjsSymbol1066'%3e%3cuse xlink:href='%23SvgjsPath1060' x='30' y='30' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='30' y='90' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='30' y='150' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='30' y='210' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='30' y='270' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1063' x='30' y='330' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1064' x='30' y='390' stroke='rgba(53%2c 196%2c 255%2c 0.3)' stroke-width='3'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='30' y='450' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='30' y='510' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='30' y='570' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='90' y='30' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='90' y='90' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='90' y='150' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1063' x='90' y='210' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1065' x='90' y='270' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1063' x='90' y='330' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1063' x='90' y='390' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='90' y='450' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='90' y='510' 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xlink:href='%23SvgjsPath1061' x='150' y='510' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='150' y='570' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='210' y='30' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='210' y='90' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='210' y='150' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='210' y='210' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='210' y='270' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='210' y='330' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='210' y='390' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1063' x='210' y='450' stroke='rgba(53%2c 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xlink:href='%23SvgjsPath1062' x='270' y='450' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='270' y='510' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1063' x='270' y='570' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='330' y='30' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='330' y='90' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='330' y='150' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1065' x='330' y='210' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1064' x='330' y='270' stroke='rgba(53%2c 196%2c 255%2c 0.3)' stroke-width='3'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='330' y='330' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='330' y='390' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1063' x='330' y='450' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1065' x='330' y='510' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='330' y='570' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='390' y='30' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='390' y='90' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1065' x='390' y='150' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='390' y='210' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='390' y='270' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='390' y='330' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='390' y='390' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='390' y='450' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='390' y='510' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='390' y='570' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='450' y='30' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='450' y='90' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1063' x='450' y='150' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1063' x='450' y='210' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='450' y='270' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1065' x='450' y='330' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='450' y='390' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='450' y='450' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1063' x='450' y='510' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='450' y='570' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='510' y='30' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='510' y='90' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='510' y='150' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1064' x='510' y='210' stroke='rgba(53%2c 196%2c 255%2c 0.3)' stroke-width='3'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='510' y='270' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='510' y='330' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='510' y='390' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='510' y='450' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='510' y='510' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='510' y='570' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1065' x='570' y='30' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1063' x='570' y='90' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='570' y='150' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='570' y='210' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='570' y='270' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='570' y='330' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1063' x='570' y='390' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='570' y='450' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='570' y='510' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='570' y='570' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='630' y='30' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='630' y='90' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='630' y='150' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='630' y='210' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='630' y='270' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='630' y='330' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1065' x='630' y='390' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='630' y='450' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='630' y='510' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1065' x='630' y='570' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='690' y='30' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='690' y='90' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1062' x='690' y='150' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1065' x='690' y='210' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1061' x='690' y='270' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='690' y='330' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1063' x='690' y='390' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='690' y='450' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='690' y='510' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3cuse xlink:href='%23SvgjsPath1060' x='690' y='570' stroke='rgba(53%2c 196%2c 255%2c 0.3)'%3e%3c/use%3e%3c/symbol%3e%3c/svg%3e");
}
main {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
}
ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.Clock {
  width: var(--clock-size);
  height: var(--clock-size);
  transform: translateY(calc(var(--clock-size) / 4));
  position: relative;
  overflow: hidden;
  clip-path: circle(30% at 50% 0);
  border: 2px solid #35c4ff;
  border-radius: 50%;
}
.Clock > li {
  position: absolute;
  inset: 0;
}
.Clock > li:nth-child(1) {
  transform: translateY(20px);
}
.Clock > li:nth-child(2) {
  transform: translateY(50px);
}
.Clock > li:nth-child(3) {
  transform: translateY(80px);
}
.ClockCircle {
  position: relative;
  border-radius: 50%;
  transform-origin: center;
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.ClockCircleNumber {
  position: absolute;
  text-align: center;
  border-radius: 50%;
  font-weight: bold;
  opacity: 0.5;
  transform: translate(-50%, -50%);
  font-size: 1em;
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.ClockCircleNumber.selected {
  opacity: 1;
  font-size: 1.5em;
}

JS

import React from "https://esm.sh/react";
import ReactDOM from "https://esm.sh/react-dom";

function getTimeDigits() {
  const now = new Date();
  const digits = {
    hours: now.getHours(),
    minutes: now.getMinutes(),
    seconds: now.getSeconds() };

return digits;
}

function CircleNumbers({ number, angleIndex, size }) {
  const stepAngle = 360 / number;
  const [angle, setAngle] = React.useState(angleIndex * stepAngle);

React.useEffect(() => {
    setAngle(angle => angleIndex * stepAngle);
  }, [angleIndex]);

const radius = size / 2;
  const center = size / 2;
  const numberSize = size * 0.1;
  const numbers = Array.from({ length: number }, (_, i) =>
  String(i).padStart(2, "0"));

return /*#__PURE__*/(
    React.createElement("div", {
      className: "ClockCircle",
      style: {
        width: `${size}px`,
        height: `${size}px`,
        transform: `rotate(${angle}deg)` } },

numbers.map((num, index) => {
      const a = index / number * 2 * Math.PI;
      const x = center + radius * Math.sin(a);
      const y = center - radius * Math.cos(a);

return /*#__PURE__*/(
        React.createElement("div", {
          key: num,
          className: `ClockCircleNumber ${
          Math.abs(angleIndex) === parseInt(num) ? "selected" : ""
          }`,
          style: {
            width: `${numberSize}px`,
            height: `${numberSize}px`,
            lineHeight: `${numberSize}px`,
            left: `${x}px`,
            top: `${y}px`,
            transform: `translate(-50%, -50%) rotate(${-angle}deg)` } },

num));

})));

}

function App() {

React.useEffect(() => {
    if (typeof addVideoLinks === "function") {
      addVideoLinks("7443865247158488342", "Tyex-a26AvA", "#35c4ff");
    }
  }, []);

const [hours, setHours] = React.useState(null);
  const [minutes, setMinutes] = React.useState(null);
  const [seconds, setSeconds] = React.useState(null);
  React.useEffect(() => {
    const interval = setInterval(() => {
      const { hours: h, minutes: m, seconds: s } = getTimeDigits();
      setHours(h);
      setMinutes(m);
      setSeconds(s);
    }, 1000);
  }, []);

const clockSize = 800;

return /*#__PURE__*/(
    React.createElement("main", null, /*#__PURE__*/
    React.createElement("ul", { className: "Clock", style: { "--clock-size": `${clockSize}px` } }, /*#__PURE__*/
    React.createElement("li", null,
    hours !== null && /*#__PURE__*/
    React.createElement(CircleNumbers, {
      number: 24,
      angleIndex: 0 - hours,
      size: clockSize })), /*#__PURE__*/

React.createElement("li", null,
    minutes !== null && /*#__PURE__*/
    React.createElement(CircleNumbers, {
      number: 60,
      angleIndex: 0 - minutes,
      size: clockSize })), /*#__PURE__*/

React.createElement("li", null,
    seconds !== null && /*#__PURE__*/
    React.createElement(CircleNumbers, {
      number: 60,
      angleIndex: 0 - seconds,
      size: clockSize })))));

}

ReactDOM.render( /*#__PURE__*/React.createElement(App, null), document.getElementById("root"));

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