Wie bekomme Ich eine Welt Zeit Uhr auf meiner Homepage

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<option value="" Wähle die Zeitzohne</option>
<option value="0">London GMT</option>
<option value="1">Rome</option>
<option value="2">Cairo</option>
<option value="3">Moscow</option>
<option value="5">Karachi</option>
<option value="7">Bangkok</option>
<option value="8">Hong Kong</option>
<option value="9">Tokyo</option>
<option value="10">Sydney</option>
<option value="12">Fiji</option>
<option value="-10">Hawaii</option>
<option value="-8">San Francisco</option>
<option value="-7">Arizona</option>
<option value="-5">New York</option>
<option value="-3">Buenos Aires</option>
</select>
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