Script to find files on a given input date

Shell Programming and Scripting
1

Hello gurus,
I need to write a script to find out all the file that got changed on a specific folder since a given input date (Date to be given as Input)
Thanx

2 
#!/bin/ksh
# $1 = date in the following format %y%m%d
touch -t "$1"0000:01 ~/dummy
find /path/to/folder -newer ~/dummy -type f