perl regular expression to remove the special characters

I had a string in perl script as below.

Tue Aug��7 03:54:12 2012

Now I need to replace the special character with space.
After removing the special chaacters

Tue Aug 7 03:54:12 2012

Could anyone please help me here for writing the regular expression?

Thanks in advance..

Regards,
GS

Let's say this value is stored in a variable called "$date".
Then you could try something like this -

$date =~ s/[^a-z 0-9:]+/ /ig;

tyler_durden