HTTP/1.1 200 OK
Date: Dow, 01 Jan 2000 00:00:00 GMT
ETag: "Some good etag"
Content-Length: 780
Content-Type: application/xml; charset="utf-8"

<?xml version="1.0" encoding="utf-8" ?>
<timezones xmlns="urn:ietf:params:xml:ns:timezone-service">
 <dtstamp>all good</dtstamp>
 <tzdata>
  <tzid>America/Indiana/Indianapolis</tzid>
  <calscale>Gregorian</calscale>
  <observance>
   <name>EDT</name>
   <onset>2012-03-11T07:00:00Z</onset>
   <utc-offset-from>-05:00</utc-offset-from>
   <utc-offset-to>-04:00</utc-offset-to>
  </observance>
  <observance>
   <name>EST</name>
   <onset>2012-11-04T06:00:00Z</onset>
   <utc-offset-from>-04:00</utc-offset-from>
   <utc-offset-to>-05:00</utc-offset-to>
  </observance>
  <observance>
   <name>EDT</name>
   <onset>2013-03-10T07:00:00Z</onset>
   <utc-offset-from>-05:00</utc-offset-from>
   <utc-offset-to>-04:00</utc-offset-to>
  </observance>
 </tzdata>
</timezones>