diff --git a/module/ai/lang/en.php b/module/ai/lang/en.php
index 9e7d781041..c68c4f8783 100644
--- a/module/ai/lang/en.php
+++ b/module/ai/lang/en.php
@@ -563,9 +563,11 @@ $lang->ai->formSchema['task']['create']->properties->pri->description      = 'Pr
 $lang->ai->formSchema['task']['create']->properties->pri->enum             = array('1', '2', '3', '4');
 $lang->ai->formSchema['task']['create']->properties->estimate->type        = 'number';
 $lang->ai->formSchema['task']['create']->properties->estimate->description = 'Estimated hours of task';
-$lang->ai->formSchema['task']['create']->properties->begin->type           = 'date';
+$lang->ai->formSchema['task']['create']->properties->begin->type           = 'string';
+$lang->ai->formSchema['task']['create']->properties->begin->format         = 'date';
 $lang->ai->formSchema['task']['create']->properties->begin->description    = 'Begin date of task';
-$lang->ai->formSchema['task']['create']->properties->end->type             = 'date';
+$lang->ai->formSchema['task']['create']->properties->end->type             = 'string';
+$lang->ai->formSchema['task']['create']->properties->end->format           = 'date';
 $lang->ai->formSchema['task']['create']->properties->end->description      = 'End date of task';
 $lang->ai->formSchema['task']['create']->required = array('type', 'name');
 $lang->ai->formSchema['task']['edit'] = $lang->ai->formSchema['task']['create'];
@@ -639,9 +641,11 @@ $lang->ai->formSchema['testreport']['create']->properties->begin  = new stdclass
 $lang->ai->formSchema['testreport']['create']->properties->end    = new stdclass();
 $lang->ai->formSchema['testreport']['create']->properties->title  = new stdclass();
 $lang->ai->formSchema['testreport']['create']->properties->report = new stdclass();
-$lang->ai->formSchema['testreport']['create']->properties->begin->type         = 'date';
+$lang->ai->formSchema['testreport']['create']->properties->begin->type         = 'string';
+$lang->ai->formSchema['testreport']['create']->properties->begin->format       = 'date';
 $lang->ai->formSchema['testreport']['create']->properties->begin->description  = 'Begin date of testing';
-$lang->ai->formSchema['testreport']['create']->properties->end->type           = 'date';
+$lang->ai->formSchema['testreport']['create']->properties->end->type           = 'string';
+$lang->ai->formSchema['testreport']['create']->properties->end->format         = 'date';
 $lang->ai->formSchema['testreport']['create']->properties->end->description    = 'End date of testing';
 $lang->ai->formSchema['testreport']['create']->properties->title->type         = 'string';
 $lang->ai->formSchema['testreport']['create']->properties->title->description  = 'Title of test report';
@@ -695,9 +699,11 @@ $lang->ai->formSchema['programplan']['create']->properties->stages->items->prope
 $lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->attribute->enum        = array('request', 'design', 'dev', 'qa', 'release', 'review', 'other');
 $lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->milestone->type        = 'boolean';
 $lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->milestone->description = 'Is milestone?';
-$lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->begin->type            = 'date';
+$lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->begin->type            = 'string';
+$lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->begin->format          = 'date';
 $lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->begin->description     = 'Begin date of stage';
-$lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->end->type              = 'date';
+$lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->end->type              = 'string';
+$lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->end->format            = 'date';
 $lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->end->description       = 'End date of stage';
 $lang->ai->formSchema['programplan']['create']->required = array('stages');
 
diff --git a/module/ai/lang/zh-cn.php b/module/ai/lang/zh-cn.php
index c87f4db22d..6a99bdfabe 100644
--- a/module/ai/lang/zh-cn.php
+++ b/module/ai/lang/zh-cn.php
@@ -563,9 +563,11 @@ $lang->ai->formSchema['task']['create']->properties->pri->description      = '
 $lang->ai->formSchema['task']['create']->properties->pri->enum             = array('1', '2', '3', '4');
 $lang->ai->formSchema['task']['create']->properties->estimate->type        = 'number';
 $lang->ai->formSchema['task']['create']->properties->estimate->description = '任务的预计工时';
-$lang->ai->formSchema['task']['create']->properties->begin->type           = 'date';
+$lang->ai->formSchema['task']['create']->properties->begin->type           = 'string';
+$lang->ai->formSchema['task']['create']->properties->begin->format         = 'date';
 $lang->ai->formSchema['task']['create']->properties->begin->description    = '任务的预计开始日期';
-$lang->ai->formSchema['task']['create']->properties->end->type             = 'date';
+$lang->ai->formSchema['task']['create']->properties->end->type             = 'string';
+$lang->ai->formSchema['task']['create']->properties->end->format           = 'date';
 $lang->ai->formSchema['task']['create']->properties->end->description      = '任务的预计结束日期';
 $lang->ai->formSchema['task']['create']->required = array('type', 'name');
 $lang->ai->formSchema['task']['edit'] = $lang->ai->formSchema['task']['create'];
@@ -639,9 +641,11 @@ $lang->ai->formSchema['testreport']['create']->properties->begin  = new stdclass
 $lang->ai->formSchema['testreport']['create']->properties->end    = new stdclass();
 $lang->ai->formSchema['testreport']['create']->properties->title  = new stdclass();
 $lang->ai->formSchema['testreport']['create']->properties->report = new stdclass();
-$lang->ai->formSchema['testreport']['create']->properties->begin->type         = 'date';
+$lang->ai->formSchema['testreport']['create']->properties->begin->type         = 'string';
+$lang->ai->formSchema['testreport']['create']->properties->begin->format       = 'date';
 $lang->ai->formSchema['testreport']['create']->properties->begin->description  = '测试开始时间';
-$lang->ai->formSchema['testreport']['create']->properties->end->type           = 'date';
+$lang->ai->formSchema['testreport']['create']->properties->end->type           = 'string';
+$lang->ai->formSchema['testreport']['create']->properties->end->format         = 'date';
 $lang->ai->formSchema['testreport']['create']->properties->end->description    = '测试开始时间';
 $lang->ai->formSchema['testreport']['create']->properties->title->type         = 'string';
 $lang->ai->formSchema['testreport']['create']->properties->title->description  = '测试报告的标题';
@@ -695,9 +699,11 @@ $lang->ai->formSchema['programplan']['create']->properties->stages->items->prope
 $lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->attribute->enum        = array('request', 'design', 'dev', 'qa', 'release', 'review', 'other');
 $lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->milestone->type        = 'boolean';
 $lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->milestone->description = '是否为里程碑';
-$lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->begin->type            = 'date';
+$lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->begin->type            = 'string';
+$lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->begin->format          = 'date';
 $lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->begin->description     = '阶段开始时间';
-$lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->end->type              = 'date';
+$lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->end->type              = 'string';
+$lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->end->format            = 'date';
 $lang->ai->formSchema['programplan']['create']->properties->stages->items->properties->end->description       = '阶段结束时间';
 $lang->ai->formSchema['programplan']['create']->required = array('stages');