如何在Excel中将24小时转换为12小时

Question

我的问题是我想将DataGridView中的时间转换为12小时格式，同时将其导出到Excel文件中。

这是我的代码：

Microsoft.Office.Interop.Excel._Application app = new Microsoft.Office.Interop.Excel.Application();
Microsoft.Office.Interop.Excel._Workbook workbook = app.Workbooks.Add(Type.Missing);
Microsoft.Office.Interop.Excel._Worksheet worksheet = null;

worksheet = workbook.Sheets["Sheet1"];
worksheet = workbook.ActiveSheet;
worksheet.Name = "Exported from gridview";
for (int i = 1; i < dataGridView1.Columns.Count + 1; i++)
{
    worksheet.Cells[1, i] = dataGridView1.Columns[i - 1].HeaderText;
}

for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)
{
    (worksheet.Rows[i + 2 + ":" + i + 2, System.Reflection.Missing.Value] as Microsoft.Office.Interop.Excel.Range).NumberFormat = "@";
    for (int j = 0; j < dataGridView1.Columns.Count; j++)
    {

        worksheet.Cells[i + 2, j + 1] = dataGridView1.Rows[i].Cells[j].Value.ToString();


       worksheet.Cells[i + 2, 3].NumberFormat = "h:mm AM/PM";
    }
}
var saveFileDialoge = new SaveFileDialog();
saveFileDialoge.FileName = "output";
saveFileDialoge.DefaultExt = ".xlsx";
if (saveFileDialoge.ShowDialog() == DialogResult.OK)
{
    workbook.SaveAs(saveFileDialoge.FileName, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
    app.Visible = true;

这是我调试代码的时候

这是如果我将其导出到excel：