Documentation Link: SwatTimeZoneEntry

SwatML for this demo:

<?xml version="1.0" standalone="no"?>
<!DOCTYPE swatml SYSTEM "http://swat.silverorange.com/swatml1.dtd">
<swatml>
  <widget class="SwatForm" id="my_form">

    <widget class="SwatFormField">
      <property name="title">Select Your Timezone</property>
      <widget class="SwatTimeZoneEntry" id="timezone">
        <property name="required" type="boolean">true</property>
      </widget>
    </widget>
    <widget class="SwatFormField">
      <widget class="SwatButton" id="foobar" />
    </widget>

  </widget>
</swatml>