Winform DataTimePicker控件的时间格式

先设置好dateTimePicker下面两个属性：
dateTimePicker1.Format = DateTimePickerFormat.Custom;
dateTimePicker1.CustomFormat = "yyyy-MM-dd HH:mm:ss";//HH是24小时，hh是12小时 然后用下面的方法就可以得到时，分，秒的值了：
private void dateTimePicker1_ValueChanged(object sender, EventArgs e)
{ DateTime date = DateTime.Parse(dateTimePicker1.Text);
string hours = date.Hour.ToString();
string minute = date.Minute.ToString();
string second = date.Second.ToString();
}