!time [nick] displays the system time and date of the specified person.
!version [nick] shows what IRC client specified person is using.

Tested in irc.lucidchat.net.

on $*:TEXT:/^!(time|version) /Si:#: {
  if (%flood [ $+ [ $+($site,$network) ] ]) { notice $nick 12You must wait04 $duration($v1) 12before you can use that again. | halt }
  if (!$2) { notice $nick 12Syntax: 04 $+ $1 [nick] | halt }
  var %i 1 | while ($comchan($2,%i)) { 
    if (!%cmd) var -g %cmd $regml(1), %nick $nick
    inc %i
  }
  if (!%cmd) { notice $nick 4 $+ $me 12and 4 $+ $2 12have to be on the same channel. | halt }
  ctcp $2 %cmd
  set -z $+(%,flood,$site,$network) 10
}

on $*:CTCPREPLY:/^(time|version)*/Si: { 
  notice %nick $+(04,$nick, 12,$iif($1 = time,current time and date,using),: 04,$2-)
  unset %cmd %nick
}

raw 492:*: {
  notice %nick $+(4,$2,$chr(44) 12,$3-) | unset %cmd %nick 
}