i have this code:

on *:ctcpreply:*: {
/echo -a $form.ctcp_rep($nick, $1, $2-)
halt
}

and it works fine with all ctcp replys exept with ping. on ping reply it echoes me this:

('21:05:14') (somenick) [PING Reply: 1064257513]

i would like to know how to calculate the ping ?