'変数宣言 Dim dt as string = "" '西暦から和暦に変換 Dim myCi As New System.Globalization.CultureInfo("ja-JP", True) myCi.DateTimeFormat.Calendar = New System.Globalization.JapaneseCalendar() '西暦から和暦に変換 dt = Today.ToString("yy", myCi)