DateTime.Now.Tostring();
. You can supply parameters to To string function in a lot of ways like given in this link http://www.geekzilla.co.uk/View00FF7904-B510-468C-A2C8-F859AA20581F.htm
This will be a lot useful. If you reside somewhere else than the regular format (MM/dd/yyyy)
use always MM not mm, mm gives minutes and MM gives month.