I don't know what stored procedures you are using to trnasfer data. I suggest you to use SSIS. Using SSIS, proper code page properties should be used (1256 for Arabic)
-----------------------------------------------------------[font=Arial Black]Time Is Money[/font][font=Arial Narrow]Calculating the Number of Business Hours Passed since a Point of Time[/url][/font][font=Arial Narrow]Calculating the Number of Business Hours Passed Between Two Points of Time[/font]