<?xml version="1.0"?>
<page>
  <!-- valid durations -->
  <date duration="PT10M"/>
  <date duration="-P10D"/>
  <date duration="PT10H"/>
  <date duration="PT10H10M10.5S"/>
  <date duration="PT0.00001S"/>
  <date duration="PT49.00001S"/>
  <date duration="P0Y0M31DT10H10M10.09S"/>
  <date duration="-P0Y0M31DT10H10M10.09S"/>
  <date duration="PT100H100M100.001S"/>
  <date duration="PT10H10M.5S"/>
  <date duration="PT10H10M5.S"/>
  <!-- date/times -->
  <date duration="2001"/>
  <date duration="2001-10-29T10:31:07"/>
  <date duration="1970-01-01T00:00:00"/>
  <date duration="1970-01-01T00:00:01"/>
  <date duration="1969-12-31T23:59:59"/>
  <date duration="1969-01-01T00:00:00"/>
  <date duration="1971-01-01T00:00:00"/>
  <date duration="0001-01-01T00:00:00"/>
  <date duration="-0001-01-01T00:00:00"/>
  <!-- timezones -->
  <date duration="1970-01-01" />
  <date duration="1970-01-01Z" />
  <date duration="1970-01-01-11:00" />
  <date duration="1970-01-01+11:00" />
  <date duration="1970-01-01-12:00" />
  <date duration="1970-01-01+12:00" />
  <date duration="1970-01-01-13:00" />
  <date duration="1970-01-01+13:00" />
</page>

