title: No date part in...lib/Zend/Date.php(1078) in many backend pages after server configuration changed
body: <p>After some unreported changes made by our customer's store hosting company we are getting many errors around the magento date formatting and many admin screens breaks (sales order view, customers, index management, and others).</p>
  
  <p>In the reports folder log, I get:</p>
  
  <pre><code>a:5:{i:0;s:44:"No date part in '2012-09-03 19:36:17' found.";i:1;s:6218:"#0 /public_html/sp/lib/Zend/Date.php(1078): Zend_Date-&gt;_calculate('set', '2012-09-03 19:3...', 'yyyy-MM-dd HH:m...', 'pt_BR')
  #1 /public_html/sp/lib/Zend/Date.php(197): Zend_Date-&gt;set('2012-09-03 19:3...', 'yyyy-MM-dd HH:m...', 'pt_BR')
  #2 /public_html/sp/app/code/core/Mage/Core/Model/Locale.php(478): Zend_Date-&gt;__construct('2012-09-03 19:3...', 'yyyy-MM-dd HH:m...', Object(Zend_Locale))
  #3 /public_html/sp/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Column/Renderer/Datetime.php(81): Mage_Core_Model_Locale-&gt;date('2012-09-03 19:3...', 'yyyy-MM-dd HH:m...')
  #4 /public_html/sp/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Column.php(128): Mage_Adminhtml_Block_Widget_Grid_Column_Renderer_Datetime-&gt;render(Object(Mage_Index_Model_Process))
  #5 /public_html/sp/app/design/adminhtml/default/casadosaber/template/widget/grid.phtml(161): Mage_Adminhtml_Block_Widget_Grid_Column-&gt;getRowField(Object(Mage_Index_Model_Process))
  #6 /public_html/sp/app/code/core/Mage/Core/Block/Template.php(235): include('/public_html/s...')
  #7 /public_html/sp/app/code/core/Mage/Core/Block/Template.php(266): Mage_Core_Block_Template-&gt;fetchView('adminhtml/defau...')
  #8 /public_html/sp/app/code/core/Mage/Core/Block/Template.php(280): Mage_Core_Block_Template-&gt;renderView()
  #9 /public_html/sp/app/code/core/Mage/Adminhtml/Block/Template.php(81): Mage_Core_Block_Template-&gt;_toHtml()
  #10 /public_html/sp/app/code/core/Mage/Core/Block/Abstract.php(758): Mage_Adminhtml_Block_Template-&gt;_toHtml()
  #11 /public_html/sp/app/code/core/Mage/Core/Block/Abstract.php(525): Mage_Core_Block_Abstract-&gt;toHtml()
  #12 /public_html/sp/app/code/core/Mage/Core/Block/Abstract.php(476): Mage_Core_Block_Abstract-&gt;_getChildHtml('grid', true)
  #13 /public_html/sp/app/code/core/Mage/Adminhtml/Block/Widget/Grid/Container.php(70): Mage_Core_Block_Abstract-&gt;getChildHtml('grid')
  #14 /public_html/sp/app/design/adminhtml/default/default/template/widget/grid/container.phtml(36): Mage_Adminhtml_Block_Widget_Grid_Container-&gt;getGridHtml()
  #15 /public_html/sp/app/code/core/Mage/Core/Block/Template.php(235): include('/home/storage/5...')
  #16 /public_html/sp/app/code/core/Mage/Core/Block/Template.php(266): Mage_Core_Block_Template-&gt;fetchView('adminhtml/defau...')
  #17 /public_html/sp/app/code/core/Mage/Core/Block/Template.php(280): Mage_Core_Block_Template-&gt;renderView()
  #18 /public_html/sp/app/code/core/Mage/Adminhtml/Block/Template.php(81): Mage_Core_Block_Template-&gt;_toHtml()
  #19 /public_html/sp/app/code/core/Mage/Adminhtml/Block/Widget/Container.php(295): Mage_Adminhtml_Block_Template-&gt;_toHtml()
  #20 /public_html/sp/app/code/core/Mage/Core/Block/Abstract.php(758): Mage_Adminhtml_Block_Widget_Container-&gt;_toHtml()
  #21 /public_html/sp/app/code/core/Mage/Core/Block/Text/List.php(43): Mage_Core_Block_Abstract-&gt;toHtml()
  #22 /public_html/sp/app/code/core/Mage/Core/Block/Abstract.php(758): Mage_Core_Block_Text_List-&gt;_toHtml()
  #23 /public_html/sp/app/code/core/Mage/Core/Block/Abstract.php(525): Mage_Core_Block_Abstract-&gt;toHtml()
  #24 /public_html/sp/app/code/core/Mage/Core/Block/Abstract.php(476): Mage_Core_Block_Abstract-&gt;_getChildHtml('content', true)
  #25 /public_html/sp/app/design/adminhtml/default/default/template/page.phtml(74): Mage_Core_Block_Abstract-&gt;getChildHtml('content')
  #26 /public_html/sp/app/code/core/Mage/Core/Block/Template.php(235): include('/home/storage/5...')
  #27 /public_html/sp/app/code/core/Mage/Core/Block/Template.php(266): Mage_Core_Block_Template-&gt;fetchView('adminhtml/defau...')
  #28 /public_html/sp/app/code/core/Mage/Core/Block/Template.php(280): Mage_Core_Block_Template-&gt;renderView()
  #29 /public_html/sp/app/code/core/Mage/Adminhtml/Block/Template.php(81): Mage_Core_Block_Template-&gt;_toHtml()
  #30 /public_html/sp/app/code/core/Mage/Core/Block/Abstract.php(758): Mage_Adminhtml_Block_Template-&gt;_toHtml()
  #31 /public_html/sp/app/code/core/Mage/Core/Model/Layout.php(529): Mage_Core_Block_Abstract-&gt;toHtml()
  #32 /public_html/sp/app/code/core/Mage/Core/Controller/Varien/Action.php(391): Mage_Core_Model_Layout-&gt;getOutput()
  #33 /public_html/sp/app/code/core/Mage/Index/controllers/Adminhtml/ProcessController.php(55): Mage_Core_Controller_Varien_Action-&gt;renderLayout()
  #34 /public_html/sp/app/code/core/Mage/Core/Controller/Varien/Action.php(420): Mage_Index_Adminhtml_ProcessController-&gt;listAction()
  #35 /public_html/sp/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(253): Mage_Core_Controller_Varien_Action-&gt;dispatch('list')
  #36 /public_html/sp/app/code/core/Mage/Core/Controller/Varien/Front.php(176): Mage_Core_Controller_Varien_Router_Standard-&gt;match(Object(Mage_Core_Controller_Request_Http))
  #37 /public_html/sp/app/code/core/Mage/Core/Model/App.php(340): Mage_Core_Controller_Varien_Front-&gt;dispatch()
  #38 /public_html/sp/app/Mage.php(630): Mage_Core_Model_App-&gt;run(Array)
  #39 /public_html/sp/index.php(84): Mage::run('', 'store')
  #40 {main}";s:3:"url";s:39:"/sp/index.php/cs_mg_admin/process/list/";s:11:"script_name";s:13:"/sp/index.php";s:4:"skin";s:5:"admin";}
  </code></pre>
  
  <p>In dev environment it works well, and before yesterday, when the hosting made many changes, it also works there.</p>
  
  <p>We use America/Sao_Paulo as timezone, and there's no customer in <em>customer_entity</em> table with NULL values at created_at or updated_at, neither in <em>sales_flat_order</em> and <em>sales_flat_order_grid</em> tables.</p>
  
  <p>I also tried to update the created_at attribute in <em>eav_attribute</em> table and other things I saw in <a href="https://stackoverflow.com/questions/8505003/get-error-while-editing-customers-from-back-end-in-magento/8620783#8620783">this topic</a>.</p>
  
  <p>Can anyone help with this? </p>