日期格式API今天中断了

SimpleDateFormat format = new SimpleDateFormat("YYYY-MM-DD");
System.out.println("=============new Date() ="+new Date());
    
String dateStr =format.format(new Date() );    
System.out.println("==============dateStr "+dateStr );

并查看以下输出

=============new Date() =Mon Feb 01 11:22:02 EST 2021
==============dateStr  = 2021-02-32

这个今天运行良好的代码有什么问题呢？

回答

    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
    System.out.println("=============new Date() ="+new Date());
    String dateStr =format.format(new Date() );
    System.out.println("==============dateStr "+dateStr );