How to append a date in batch files

Question

I have the following line in a batch file (that runs on an old Windows 2000 box):

7z a QuickBackup.zip *.backup

How do I append the date to

Answer 1

This will work for the non-US date format (dd/MM/yyyy):

set backupFilename=%DATE:~6,4%%DATE:~3,2%%DATE:~0,2%
7z a QuickBackup%backupFilename%.zip *.backup