The following case: There is a string that has this format \"2012-02-25 07:53:04\"
But in the end, i rather want to end up with this format \"25-02-2012 07:53:04\">
Yes, it is quite possible. All you need to do is use DateTime.Parse to parse the string into a DateTime struct and then use ToString() to write the date back out to another string with the format you want.
DateTime.Parse
string
DateTime
ToString()