When running "{{phpunit --verbose AllTests}}" (from {{trunk/tests}}), I get the following fatal error:

Fatal error: Class 'DateTimeZone' not found in c:\Documents and Settings\dfelton\My Documents\SVN Remote\Zend Framework\
trunk\library\Zend\Date.php on line 1336

Call Stack:
    0.0041   1. {main}() c:\wamp\php\PEAR\PHPUnit\TextUI\Command.php:0
    1.8150   2. PHPUnit_TextUI_Command::main() c:\wamp\php\PEAR\PHPUnit\TextUI\Command.php:528
   28.2982   3. PHPUnit_TextUI_TestRunner->doRun() c:\wamp\php\PEAR\PHPUnit\TextUI\Command.php:112
   28.2987   4. PHPUnit_Framework_TestSuite->run() C:\wamp\php\PEAR\PHPUnit\TextUI\TestRunner.php:295
   28.4082   5. PHPUnit_Framework_TestSuite->run() C:\wamp\php\PEAR\PHPUnit\Framework\TestSuite.php:647
   96.3383   6. PHPUnit_Framework_TestSuite->run() C:\wamp\php\PEAR\PHPUnit\Framework\TestSuite.php:647
   96.3386   7. PHPUnit_Framework_TestSuite->runTest() C:\wamp\php\PEAR\PHPUnit\Framework\TestSuite.php:664
   96.3386   8. PHPUnit_Framework_TestCase->run() C:\wamp\php\PEAR\PHPUnit\Framework\TestSuite.php:684
   96.3386   9. PHPUnit_Framework_TestResult->run() C:\wamp\php\PEAR\PHPUnit\Framework\TestCase.php:376
   96.3389  10. PHPUnit_Framework_TestCase->runBare() C:\wamp\php\PEAR\PHPUnit\Framework\TestResult.php:611
   96.4040  11. PHPUnit_Framework_TestCase->runTest() C:\wamp\php\PEAR\PHPUnit\Framework\TestCase.php:401
   96.4041  12. ReflectionMethod->invoke() C:\wamp\php\PEAR\PHPUnit\Framework\TestCase.php:476
   96.4041  13. Zend_DateTest->testCreation() c:\Documents and Settings\dfelton\My Documents\SVN Remote\Zend Framework\t
runk\tests\Zend\DateTest.php:0
   96.4075  14. Zend_Date->__construct() c:\Documents and Settings\dfelton\My Documents\SVN Remote\Zend Framework\trunk\
tests\Zend\DateTest.php:92
   96.4201  15. Zend_Date->getTimezoneFromString() c:\Documents and Settings\dfelton\My Documents\SVN Remote\Zend Framew
ork\trunk\library\Zend\Date.php:199