JSFiddle - React, Tailwind, and code Playground

HTML

<h3>Thực hành về Canvas</h3>
<canvas id="canvas" width="300" height="300"></canvas>

JavaScript

var sun = new Image();
var moon = new Image();
var earth = new Image();
function init(){
  sun.src = 'https://mdn.mozillademos.org/files/1456/Canvas_sun.png';
  moon.src = 'https://mdn.mozillademos.org/files/1443/Canvas_moon.png';
  earth.src = 'https://mdn.mozillademos.org/files/1429/Canvas_earth.png';
  window.requestAnimationFrame(draw);
}

function draw() {
  var ctx = document.getElementById('canvas').getContext('2d');
  //Buoc 1: Xoa cac hinh ve
  ctx.globalCompositeOperation = 'destination-over';
  ctx.clearRect(0,0,300,300);
  //Luu cac trang thai
  ctx.fillStyle = 'rgba(0,0,0,0.4)';
  ctx.strokeStyle = 'rgba(0,153,255,0.4)';
  ctx.save();
  ctx.translate(150,150);
  //Ve cac doi tuong
  // Trai dat
  var time = new Date();
  ctx.rotate( ((2*Math.PI)/60)*time.getSeconds() + ((2*Math.PI)/60000)*time.getMilliseconds() );
  ctx.translate(105,0);
  ctx.fillRect(0,-12,50,24); // Shadow
  ctx.drawImage(earth,-12,-12);

  // Mat trang
  ctx.save();
  ctx.rotate( ((2*Math.PI)/6)*time.getSeconds() + ((2*Math.PI)/6000)*time.getMilliseconds() );
  ctx.translate(0,28.5);
  ctx.drawImage(sun,-3.5,-3.5);
  ctx.restore();
  //Phuc hoi cac trang thai
  ctx.restore();
  ctx.beginPath();
  ctx.arc(150,150,105,0,Math.PI*2,false);
  ctx.stroke();

  ctx.drawImage(sun,0,0,300,300);

  window.requestAnimationFrame(draw);
}

init();