React js Calculate Minute Difference Two Dates

<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8" />
  <script src="https://cdnjs.cloudflare.com/ajax/libs/react/17.0.2/umd/react.development.js"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/17.0.2/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 } = React;
    const App = () => {
      const [startDate, setStartDate] = useState('');
      const [endDate, setEndDate] = useState('');
      const [minuteDifference, setMinuteDifference] = useState(null);

const handleStartDateChange = (event) => {
        setStartDate(event.target.value);
      };

const handleEndDateChange = (event) => {
        setEndDate(event.target.value);
      };

const calculateMinuteDifference = () => {
        const startDateTime = new Date(startDate);
        const endDateTime = new Date(endDate);

// Calculate the difference in milliseconds
        const differenceInMilliseconds = endDateTime - startDateTime;

// Convert milliseconds to minutes
        const differenceInMinutes = differenceInMilliseconds / (1000 * 60);

setMinuteDifference(differenceInMinutes);
      };

return (
        <div className='container'>
          <h2>React Js Calculate Minute Difference Between Two Dates</h2>
          <div>
            <label>Start Date and Time:</label>
            <input
              type="datetime-local"
              value={startDate}
              onChange={handleStartDateChange}
            />
          </div>
          <div>
            <label>End Date and Time:</label>
            <input
              type="datetime-local"
              value={endDate}
              onChange={handleEndDateChange}
            />
          </div>
          <button onClick={calculateMinuteDifference}>Calculate</button>
          {minuteDifference !== null && (
            <div>
              <p>Minute Difference: {minuteDifference} minutes</p>
            </div>
          )}
        </div>
      );
    }

ReactDOM.render(<App />, document.getElementById('app'));
  </script>
  <style>
    .container {
      border-radius: 8px;
      box-shadow: 0px 2px 4px rgba(0, 0, 0, 0.1);
      padding: 20px;
      margin: 20px auto;
      max-width: 400px;
      text-align: center;
    }

h2 {
      font-size: 24px;
      margin-bottom: 20px;
    }

label {
      font-weight: bold;
      margin-bottom: 10px;
      display: block;
    }

input[type="datetime-local"] {
      width: 100%;
      padding: 10px;
      margin-bottom: 20px;
      border: 1px solid #ccc;
      border-radius: 4px;
    }

button {
      background-color: #007bff;
      color: #fff;
      padding: 10px 20px;
      border: none;
      border-radius: 4px;
      cursor: pointer;
      font-size: 16px;
      transition: background-color 0.3s ease;
    }

button:hover {
      background-color: #0056b3;
    }

div>p {
      font-size: 20px;
      margin-top: 20px;
    }
  </style>
</body>

</html>