var timerID ;
function tzone(tz, os, ds, cl)
{
 this.ct = new Date(0) ;  // datetime
 this.tz = tz ;  // code
 this.os = os ;  // GMT offset
 this.ds = ds ;  // has daylight savings
 this.cl = cl ;  // font color
}

function UpdateClocks()
{

    var ct = new Array(

  new tzone('', +8, 0, 'maroon'),

  new tzone('', -5, 1, 'maroon'),

  new tzone('', +2, 0,  'maroon')

     ) ;

 

 var dt = new Date() ; // [GMT] time according to machine clock

 

 var startDST = new Date(dt.getFullYear(), 3, 1) ;

 while (startDST.getDay() != 0)

  startDST.setDate(startDST.getDate() + 1) ;

 

 var endDST = new Date(dt.getFullYear(), 9, 31) ;

 while (endDST.getDay() != 0)

  endDST.setDate(endDST.getDate() - 1) ;

 

 var ds_active ;  // DS currently active

 if (startDST < dt && dt < endDST)

  ds_active = 1 ;

 else

  ds_active = 0 ;

 

 // Adjust each clock offset if that clock has DS and in DS.

 for(n=0 ; n<ct.length ; n++)

  if (ct[n].ds == 1 && ds_active == 1)

ct[n].os++ ;

 

 // compensate time zones

 gmdt = new Date() ;

 for (n=0 ; n<ct.length ; n++)

  ct[n].ct = new Date(gmdt.getTime() + ct[n].os * 3600 * 1000) ;

 

 document.all.Clock0.innerHTML =  '<font color="' + ct[0].cl + '">' + ct[0].tz + ClockString(ct[0].ct) + '</font>' ;

 

 document.all.Clock1.innerHTML =  '<font color="' + ct[1].cl + '">' + ct[1].tz + ClockString(ct[1].ct) + '</font>' ;

 

 document.all.Clock2.innerHTML =  '<font color="' + ct[2].cl + '">' + ct[2].tz + ClockString(ct[2].ct) + '</font>' ;

 

 
 

 

 timerID = window.setTimeout("UpdateClocks()", 1001) ;

}

 

function ClockString(dt)

{

 var stemp, ampm ;

 

 var dt_year = dt.getUTCFullYear() ;

 var dt_month = dt.getUTCMonth() + 1 ;

 var dt_day = dt.getUTCDate() ;

 var dt_hour = dt.getUTCHours() ;

 var dt_minute = dt.getUTCMinutes() ;

 var dt_second = dt.getUTCSeconds() ;

 

 dt_year = dt_year.toString() ;

 if (0 <= dt_hour && dt_hour < 12)

 {

  ampm = 'AM' ;

  if (dt_hour == 0) dt_hour = 12 ;  

 } else {

  ampm = 'PM' ;

  dt_hour = dt_hour - 12 ;

  if (dt_hour == 0) dt_hour = 12 ;  

 }

 

 if (dt_minute < 10)

  dt_minute = '0' + dt_minute ;

 

 if (dt_second < 10)

  dt_second = '0' + dt_second ;

 

 stemp = dt_month + '/' + dt_day + '/' +

dt_year.substr(2,2) ;

 stemp = dt_hour + ":" + dt_minute + ":" + dt_second + ' ' + ampm ;

 return stemp ;

}