Mine

on *:TEXT:`Tb *:#: { 
  if ($nick isop $chan || $nick ishop $chan) { 
    if (!$4) || ($2 !isnum) { 
      notice $nick You must supply in this format: !tb <minutes> <nick> <reason> 
    } 
    elseif ($3 isop $chan) || ($3 ishop $chan) { 
      .notice $nick You are not allowed to tempban Ops/Halfops! 
    } 
    else { 
      ban -ku $+ $calc( $2 * 60 ) $chan $3 2 0,1<><>4,1Timebanned! Minutes: $2 Reason: $4- 0,1<><>
    } 
  } 
}