Copy Folder/File without modifying attributes?

Solution 1:

Robocopy. Has options to copy various attributes including timestamps

http://www.ss64.com/nt/robocopy.html

Syntax
      ROBOCOPY source_folder destination_folder [file(s)_to_copy] [options]

Key
   file(s)_to_copy : A list of files or a wildcard.
                          (defaults to copying *.*)

  Source options
                /S : Copy Subfolders
                /E : Copy Subfolders, including Empty Subfolders.
 /COPY:copyflag[s] : What to COPY (default is /COPY:DAT).
                      (copyflags : D=Data, A=Attributes, T=Timestamps).
                      (S=Security=NTFS ACLs, O=Owner info, U=aUditing info).
              /SEC : Copy files with SECurity (equivalent to /COPY:DATS).
          /DCOPY:T : Copy Directory Timestamps. ##
          /COPYALL : Copy ALL file info (equivalent to /COPY:DATSOU).
           /NOCOPY : Copy NO file info (useful with /PURGE)

Solution 2:

rsync has the option "-t, --times" to preserve times.