How to convert Date and Time Formats in VB.Net

Do you mean string representation of a date? Check the link
http://msdn.microsoft.com/en-us/library/8kb3ddd4.aspx[^]

convert dateTime format means ?
do you want to convert to DD/MM/YYYY and MM/DD/YYYY. OR convert any string to dateTime.

OK. here is example to convert current dateTime to different format.

DateTime.Now.ToString("dd/MM/yyyy hh:mm:ss"), output :04/11/2011 12:01:24

DateTime.Now.ToString("MM/dd/yy hh:mm"), output :11/04/11 12:01

DateTime.Now.ToString("MM/d/yyyy hh:mm"), output :11/4/2011 12:01

These are few example. you can customize dateTime format as you want.

Check these links
http://www.dotnetperls.com/datetime-format-vbnet[^]

http://www.java2s.com/Code/VB/Date-Time/DateTimeformatD.htm[^]