The script posts the mIRC or System Uptime in the active channel your in when you click Say In Channel

;;;;;;;;;;;;;;;;;;;;;;;;;;;
;                         ;
;         Uptime          ;
;        By Dj 801        ;
;                         ;
;   irc.wubnet.org:6667   ;
;      #dj801,#mIRC       ;
;                         ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;
dialog uptime {
  title "Uptime"
  size -1 -1 155 62
  option dbu
  button "Exit", 1, 26 41 88 12, ok
  text "mIRC", 2, 3 19 21 8
  text "System", 3, 3 30 22 8
  edit "", 4, 26 18 83 10, read autohs
  edit "", 5, 26 29 84 10, read autohs
  button "Say in Channel", 6, 111 18 40 9
  button "Say in Channel", 7, 111 30 40 9
  box "Time", 8, 1 10 153 49
  text "Uptime Dialog", 9, 54 2 31 8
}
alias uptime { dialog -md uptime uptime } 
Menu Channel {
  Uptime:/uptime 
}
on *:DIALOG:uptime:sclick:*:{
  if ($did == 6) { msg $active My mIRC's Uptime is  $+ $did(4) $+  }
  if ($did == 7) { /msg $active My System's Uptime is  $+ $did(5) $+  }
}
on *:DIALOG:uptime:INIT:*:{ .timertabletime 0 1 sysirct $dname } 
on *:dialog:uptime:close:*:{ .timertabletime off } 
alias -l sysirct { did -ra $1 4 $uptime(mirc, 1) | did -ra $1 5 $uptime(system, 1) }