DateTime problem

I need to UPDATE DateTime in database. But input paramter (@.DatumPozadovany) is not in Default format 'mon dd yyyy hh:miAM', but in Europian one 'dd mon yyyy HH:mi'.

This code don't work, becuse it converts standart input into unstandart output. I need the oposite of it.

UPDATE DoslaObjednavka SET DatumPozadovany = CONVERT(datetime, @.DatumPozadovany, 13), Oznaceni = @.Oznaceni WHERE (Id = @.Id)

Please, help.

SELECT CONVERT(DATETIME, GETDATE(),109)

--returns 2007-02-12 21:09:56.970

SELECT CONVERT(nvarchar(26), GETDATE(),109)

--returns Feb 12 2007 9:09:56:970PM

From the SQL Server 2005 Books Online topic
CAST and CONVERT (Transact-SQL)
"In the following table, the two columns on the left represent the style values for converting datetime or smalldatetime data to character data. Add 100 to a style value to obtain a four-place year that includes the century (yyyy).

|||Interestingly, you should try without the convert. If you let SQL do the conversion implicitly, it may well recognise the format you're using anyway. If you specify a format, it will have to match it exactly.

Rob|||Thaks everyone for reply. Error was at very different place.
In ASP.NET i didn't specify parametr datatype. It expected some strange datetime format and didn't work. Now it works fine.