This command calculates the lag between you and the server, in milliseconds. type !ping and it'll msg it to the very first screen.

on *:INPUT:#: {
if ( $1 == !ping ) {
  if ( %pingor == $null ) {
    .set %pingor 0
    .ping $nick
    .timer22 -h 0 1 /inc %pingor 1
    .set -u5 %chan $chan
  }
  else /msg $chan 4stop spamming me...
  .halt
}
}
on *:pong: {
  if ( %pingor != $null ) {
    /msg %chan 2Currently $status with lag of %pingor milliseconds!
    .timer22 off
    .timer 1 2 /unset %pingor
    /halt
  }
}