Hi Jared,
Check the DateFormat property of the Input_Calendar widget.
Follow the description:
Defaults to the date format defined in the server configuration. The defaults are "%Y-%m-%d" for Date and "%Y-%m-%d %H:%M:%S" for DateTime
Supported date formats:
%a abbreviated weekday name
%A full weekday name
%b abbreviated month name
%B full month name
%C century number
%d the day of the month ( 00 .. 31 )
%e the day of the month ( 0 .. 31 )
%H hour ( 00 .. 23 )
%I hour ( 01 .. 12 )
%j day of the year ( 000 .. 366 )
%k hour ( 0 .. 23 )
%l hour ( 1 .. 12 )
%m month ( 01 .. 12 )
%M minute ( 00 .. 59 )
%n a newline character
%p "PM" or "AM"
%P "pm" or "am"
%S second ( 00 .. 59 )
%s number of seconds since Epoch (since Jan 01 1970 00:00:00 UTC)
%t a tab character
%U, %W, %V the week number5
%u the day of the week ( 1 .. 7, 1 = MON )
%w the day of the week ( 0 .. 6, 0 = SUN )
%y year without the century ( 00 .. 99 )
%Y year including the century ( ex. 1979 )
%% a literal % character
You can also try to use masks, or format the source value of the input widget on preparation before the page is rendered.
Hope it helps.