How can we set a "Custom Time" for count down timer ?

Hello Ned

i am sorry that i did not include any code along with my question itself. Below is the related code.

//the timer in the App. has been currently set to two minutes (120 secs)

var count:Number = 120;

var countDown:Timer = new Timer(1000,count);

countDown.addEventListener(TimerEvent.TIMER, countsdown);

countDown.stop();

function countsdown(event:TimerEvent):void

{myText_txt.text = String((count)-countDown.currentCount);}

//when the strtCountDwn button is clicked -  apart from trigerring the timer a whole lot of events happen

// the entire Level Two of the app is trigerred by the removal of an "invisible shield" from the stage and giving access to click on the alphabet-blocks //(movieclips) on the stage in an orderly manner etc., etc.,

lev2StrtCountDwn.addEventListener(MouseEvent.CLICK, triggerLev2)

function triggerLev2(e:MouseEvent):void{

lev2StrtCountDwn.removeEventListener(MouseEvent.CLICK, triggerLev2);

shield.visible = false;

countDown.reset();  countDown.start(); 

lev2StrtCountDwn.visible = false; myText_txt.visible = true;

//.......somany events occur before the closing curly brace, but since they are not related to my question i have not included it here

}

//to stylize the font when the countdown starts i have added the below mentioned filters

var myPlayShadow2:DropShadowFilter = new DropShadowFilter();myPlayShadow2.distance = 4;

myPlayShadow2.color = 0x3F3F3F;          myPlayShadow2.blurX = 7; myPlayShadow2.blurY = 7;

myPlayShadow2.quality = 3; myText_txt.filters = [myPlayShadow2];