React Get Current DateTime | Reactjs DateTime Now

<!DOCTYPE html>
<html>
  <head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.14.0/umd/react.development.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.14.0/umd/react-dom.development.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script>
  </head>
  <body>
    <div id="app"></div>
    <script type="text/babel">
      const { useState, useEffect } = React;

function App() {
        const [currentRFC2822Date, setCurrentRFC2822Date] = useState("");

useEffect(() => {
          const getCurrentRFC2822Date = () => {
            const currentDate = new Date().toUTCString();
            setCurrentRFC2822Date(currentDate);
          };

getCurrentRFC2822Date();

const interval = setInterval(getCurrentRFC2822Date, 1000); // Update every second

return () => clearInterval(interval);
        }, []);

return (
          <div className='container'>
            <h2>React Js Current GMT Time</h2>
            <p>{currentRFC2822Date}</p>
          </div>
        );
      }

ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
      .container {
        margin: 0 auto;
        width: 500px;
        text-align: center;
        box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.12),
          0 2px 4px 0 rgba(0, 0, 0, 0.24);
        padding: 20px;
        display: flex;
        flex-direction: column;
        align-items: center;
      }
     </style>
  </body>
</html>

 
<!DOCTYPE html>
<html>
  <head>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.14.0/umd/react.development.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.14.0/umd/react-dom.development.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/6.26.0/babel.min.js"></script>
  </head>
  <body>
    <div id="app"></div>
    <script type="text/babel">
      const { useState, useEffect } = React;
​
      function App() {
        const [currentRFC2822Date, setCurrentRFC2822Date] = useState("");
​
        useEffect(() => {
          const getCurrentRFC2822Date = () => {
            const currentDate = new Date().toUTCString();
            setCurrentRFC2822Date(currentDate);
          };
​
          getCurrentRFC2822Date();
​
          const interval = setInterval(getCurrentRFC2822Date, 1000); // Update every second
​
          return () => clearInterval(interval);
        }, []);
​
        return (
          <div className='container'>
            <h2>React Js Current GMT Time</h2>
            <p>{currentRFC2822Date}</p>
          </div>
        );
      }
​
      ReactDOM.render(<App />, document.getElementById("app"));
    </script>
    <style>
      .container {
        margin: 0 auto;
        width: 500px;
        text-align: center;
        box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.12),
          0 2px 4px 0 rgba(0, 0, 0, 0.24);
        padding: 20px;
        display: flex;
        flex-direction: column;
        align-items: center;
      }
     </style>
  </body>
</html>
​