Index: t3lib/class.t3lib_tceforms.php
===================================================================
--- t3lib/class.t3lib_tceforms.php	(revision 7917)
+++ t3lib/class.t3lib_tceforms.php	(working copy)
@@ -1186,7 +1186,7 @@
 		}
 		if ((in_array('date',$evalList) || in_array('datetime',$evalList)) && $PA['itemFormElValue']>0){
 				// Add server timezone offset to UTC to our stored date
-			$PA['itemFormElValue'] += date('Z', $PA['itemFormElValue']);
+			$PA['itemFormElValue'] += date('Z', $PA['itemFormElValue']) - 3600*date('I');
 		}
 
 		$PA['fieldChangeFunc'] = array_merge(array('typo3form.fieldGet'=>'typo3form.fieldGet('.$paramsList.');'), $PA['fieldChangeFunc']);
Index: t3lib/class.t3lib_tcemain.php
===================================================================
--- t3lib/class.t3lib_tcemain.php	(revision 7917)
+++ t3lib/class.t3lib_tcemain.php	(working copy)
@@ -2099,7 +2099,7 @@
 				case 'datetime':
 					$value = intval($value);
 					if ($value>0 && !$this->dontProcessTransformations)	{
-						$value -= date('Z', $value);
+						$value -= date('Z', $value) - 3600*date('I');
 					}
 				break;
 				case 'double2':