Timezone Select Option Dropdown List

timezone.html

                                         <select id='timezone' class='form-control formBlock' name="timezone">
                 <option value=''>Timezone...</option>
                   <option>---------------- Europe----------------</option>
  <option value="GMT Greenwich Mean Time UTC">GMT Greenwich Mean Time UTC</option>
  <option value="BST British Summer Time UTC+1">BST British Summer Time UTC+1</option>
  <option value="IST Irish Summer Time UTC+1">IST Irish Summer Time UTC+1</option>
  <option value="WET Western Europe Timet UTC">WET Western Europe Timet UTC</option>
    <option value="WEST Western Europe Summer Time UTC+1">WEST Western Europe Summer Time UTC+1</option>
      <option value="CET Central Europe Time UTC+1">CET Central Europe Time UTC+1</option>
      <option value="CEST Central Europe Summer Time UTC+2">CEST Central Europe Summer Time UTC+2</option>
         <option value="EET Eastern Europe Time UTC+2">EET Eastern Europe Time UTC+2</option>
      <option value="EEST Eastern Europe Summer Time UTC+3">EEST Eastern Europe Summer Time UTC+3</option>
      <option value="MSK Moscow Time UTC+3">MSK Moscow Time UTC+3</option>
      
    
      <option value="">---------------- US and Canada ----------------</option>
         <option value="MSD Moscow Summer Time UTC+4">MSD Moscow Summer Time UTC+4</option>
      <option value="AST Atlantic Standard Time  UTC-4">AST Atlantic Standard Time  UTC-4</option>
      <option value="EST Eastern Standard Time UTC-5 ">EST Eastern Standard Time UTC-5 </option>
       <option value="EDT Eastern Daylight Saving Time UTC-4">EDT Eastern Daylight Saving Time UTC-4</option>
      <option value="CST Central Standard Time UTC-6">CST Central Standard Time UTC-6</option>
      <option value="CDT Central Daylight Saving Time UTC-5">CDT Central Daylight Saving Time UTC-5</option>
             <option value="MST Mountain Standard Time UTC-7">MST Mountain Standard Time UTC-7</option>
      <option value="MDT Mountain Daylight Saving Time UTC-6">MDT Mountain Daylight Saving Time UTC-6</option>
      <option value="PST Pacific Standard Time UTC-8">PST Pacific Standard Time UTC-8</option>
             <option value="PDT Pacific Daylight Saving Time UTC-7">PDT Pacific Daylight Saving Time UTC-7</option>
      <option value="HST Hawaiian Standard Time UTC-10">HST Hawaiian Standard Time UTC-10</option>
      <option value="AKST Alaska Standard Time UTC-9">AKST Alaska Standard Time UTC-9</option>
       <option value="AKDT Alaska Standard Daylight Saving Time UTC-8">AKDT Alaska Standard Daylight Saving Time UTC-8</option>
       
       
       <option>---------------- Australia ----------------</option>
         <option value="AEST Australian Eastern Standard Time UTC+10">AEST Australian Eastern Standard Time UTC+10</option>
      <option value="AEDT Australian Eastern Daylight Time UTC+11">AEDT Australian Eastern Daylight Time UTC+11 </option>
             <option value="ACST Australian Central Standard Time UTC+9.5">ACST Australian Central Standard Time UTC+9.5</option>
      <option value="ACDT Australian Central Daylight Time UTC+10.5">ACDT Australian Central Daylight Time UTC+10.5</option>
      <option value="AWST Australian Western Standard Time UTC+8">AWST Australian Western Standard Time UTC+8</option>
</select>