how to align text in flutter code example

Example 1: how to write text in return align in flute

Padding(
    padding: const EdgeInsets.all(8.0),
    child: Container(
      width: 300,
      padding: EdgeInsets.all(10),
        decoration: BoxDecoration(
          color: Colors.blue,
        ),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          crossAxisAlignment: CrossAxisAlignment.start,
          children: <Widget>[
            Container(
              child: Text(
                "Without Alignment",
                style: TextStyle(fontWeight: FontWeight.bold, fontSize: 30),
              ),
            ),
            Row(
              mainAxisAlignment: MainAxisAlignment.end,
              children: <Widget>[
                Container(
              decoration: BoxDecoration(
                border: Border.all(),
              ),
              child: Text(
                "7:30 PM",
                textDirection: TextDirection.rtl,
                textAlign: TextAlign.right,
                style: TextStyle(fontWeight: FontWeight.bold, fontSize: 30),
              ),
            ),
              ],
            )
          ],
        ),
      ),
  ),

Example 2: how to align text in center in flutter container

Container(
        child: Align(
          alignment: Alignment.center,
          child: Text(
            'Some text here',
            style: TextStyle(

            ),
          ),
        ),
      ),

Example 3: how to style text in flutter

Text(
'text'
style: TextStyle(),
),