diff --git a/layouts/v7/modules/Vtiger/RecentActivities.tpl b/layouts/v7/modules/Vtiger/RecentActivities.tpl
index 1aaf9ecc49c3ef7a23cf8d42737c6b8ce73278e2..ab22c6e86948a99bc4cd3dffa7d2caffa21f61db 100644
--- a/layouts/v7/modules/Vtiger/RecentActivities.tpl
+++ b/layouts/v7/modules/Vtiger/RecentActivities.tpl
@@ -79,6 +79,23 @@
                                             </h5>
                                         </div>
                                         {foreach item=FIELDMODEL from=$RECENT_ACTIVITY->getFieldInstances()}
+                                            
+                                            {assign var=FIELD_NAME value=$FIELDMODEL->getFieldInstance()->getName()}
+                                            {assign var=FIELD_DATA_TYPE value=$FIELDMODEL->getFieldInstance()->getFieldDataType()}
+                                            {assign var=PRE_DISPLAY_VALUE value=$FIELDMODEL->getDisplayValue(decode_html($FIELDMODEL->get('prevalue')))}
+                                            {assign var=POST_DISPLAY_VALUE value=$FIELDMODEL->getDisplayValue(decode_html($FIELDMODEL->get('postvalue')))}
+                                            
+                                            {if in_array($FIELD_NAME,array('time_start','time_end')) && in_array($MODULE_NAME,array('Events','Calendar'))}
+                                                {assign var=CALENDAR_RECORD_MODEL value =Vtiger_Record_Model::getInstanceById($RECORD_ID)}
+                                                {assign var=TIME_PRE_DISPLAY_VALUE value={Calendar_Time_UIType::getModTrackerDisplayValue($FIELD_NAME,$FIELDMODEL->get('prevalue'),$CALENDAR_RECORD_MODEL)}}
+                                                {assign var=TIME_POST_DISPLAY_VALUE value={Calendar_Time_UIType::getModTrackerDisplayValue($FIELD_NAME,$FIELDMODEL->get('postvalue'),$CALENDAR_RECORD_MODEL)}}
+                                                {assign var=PRE_DISPLAY_VALUE value=$TIME_PRE_DISPLAY_VALUE}
+                                                {assign var=POST_DISPLAY_VALUE value=$TIME_POST_DISPLAY_VALUE}
+                                            {/if}
+                                            
+                                            {assign var=PRE_DISPLAY_TITLE value=$TIME_PRE_DISPLAY_VALUE}
+                                            
+                                            
                                             {if $FIELDMODEL && $FIELDMODEL->getFieldInstance() && $FIELDMODEL->getFieldInstance()->isViewable() && $FIELDMODEL->getFieldInstance()->getDisplayType() neq '5'}
                                                 <div class='font-x-small updateInfoContainer textOverflowEllipsis'>
                                                     <div class='update-name'><span class="field-name">{vtranslate($FIELDMODEL->getName(),$MODULE_NAME)}</span>
@@ -86,17 +103,17 @@
                                                             <span> &nbsp;{vtranslate('LBL_CHANGED')}</span>
                                                         </div>
                                                         <div class='update-from'><span class="field-name">{vtranslate('LBL_FROM')}</span>&nbsp;
-                                                            <em style="white-space:pre-line;" title="{strip_tags({Vtiger_Util_Helper::toVtiger6SafeHTML($FIELDMODEL->getDisplayValue(decode_html($FIELDMODEL->get('prevalue'))))})}">{Vtiger_Util_Helper::toVtiger6SafeHTML($FIELDMODEL->getDisplayValue(decode_html($FIELDMODEL->get('prevalue'))))}</em>
+                                                            <em style="white-space:pre-line;" title="{strip_tags({Vtiger_Util_Helper::toVtiger6SafeHTML($PRE_DISPLAY_TITLE)})}">{Vtiger_Util_Helper::toVtiger6SafeHTML($PRE_DISPLAY_VALUE)}</em>
                                                         </div>
                                                     {else if $FIELDMODEL->get('postvalue') eq '' || ($FIELDMODEL->getFieldInstance()->getFieldDataType() eq 'reference' && $FIELDMODEL->get('postvalue') eq '0')}
-                                                        &nbsp;(<del>{Vtiger_Util_Helper::toVtiger6SafeHTML($FIELDMODEL->getDisplayValue(decode_html($FIELDMODEL->get('prevalue'))))}</del> ) {vtranslate('LBL_IS_REMOVED')}</div>
+                                                        &nbsp;(<del>{Vtiger_Util_Helper::toVtiger6SafeHTML($PRE_DISPLAY_VALUE)})</del> ) {vtranslate('LBL_IS_REMOVED')}</div>
                                                     {else if $FIELDMODEL->get('postvalue') neq '' && !($FIELDMODEL->getFieldInstance()->getFieldDataType() eq 'reference' && $FIELDMODEL->get('postvalue') eq '0')}
                                                     &nbsp;{vtranslate('LBL_UPDATED')}</div>
                                                 {else}
                                                 &nbsp;{vtranslate('LBL_CHANGED')}</div>
                                             {/if}
                                             {if $FIELDMODEL->get('postvalue') neq '' && !($FIELDMODEL->getFieldInstance()->getFieldDataType() eq 'reference' && $FIELDMODEL->get('postvalue') eq '0')}
-                                                <div class="update-to"><span class="field-name">{vtranslate('LBL_TO')}</span>&nbsp;<em style="white-space:pre-line;">{Vtiger_Util_Helper::toVtiger6SafeHTML($FIELDMODEL->getDisplayValue(decode_html($FIELDMODEL->get('postvalue'))))}</em>
+                                                <div class="update-to"><span class="field-name">{vtranslate('LBL_TO')}</span>&nbsp;<em style="white-space:pre-line;">{Vtiger_Util_Helper::toVtiger6SafeHTML($POST_DISPLAY_VALUE)}</em>
                                                 </div>
                                             {/if}
                                             </div>
diff --git a/modules/Calendar/uitypes/Datetime.php b/modules/Calendar/uitypes/Datetime.php
index 8c72c809eff2fdc38d0248bb1e880a6215cac4d0..49536638a32feded25374cbe8cee36eb6a66488d 100644
--- a/modules/Calendar/uitypes/Datetime.php
+++ b/modules/Calendar/uitypes/Datetime.php
@@ -13,8 +13,15 @@ class Calendar_Datetime_UIType extends Vtiger_Datetime_UIType {
 	public function getDisplayValue($value, $record=false, $recordInstance=false) {
 		//Since date_start and due_date fields of calendar can have time appended or removed
 		if($this->hasTimeComponent($value)) {
-			return parent::getDisplayValue($value);
-		}else{
+                        $fieldInstance = $this->get('field')->getWebserviceFieldObject();
+                        $moduleName = $this->get('field')->getModule()->getName();
+			$fieldName = $fieldInstance->getFieldName();
+                        if($fieldName == 'date_start' || $fieldName == 'due_date') {
+                            return self::getDisplayDateTimeValue($value);
+                        } else {
+                            return parent::getDisplayValue($value);
+                        }
+		} else {
 			return $this->getDisplayDateValue($value);
 		}
 	}
diff --git a/modules/Calendar/uitypes/Time.php b/modules/Calendar/uitypes/Time.php
index 7635e0d40f02193a898d6b161317eeff8310e0d0..afd349279abeefb3e597e7d9ee1d354f061a88da 100644
--- a/modules/Calendar/uitypes/Time.php
+++ b/modules/Calendar/uitypes/Time.php
@@ -59,5 +59,40 @@ class Calendar_Time_UIType extends Vtiger_Time_UIType {
 		$value = $dateTimeField->getDisplayTime();
 		return $value;
 	}
+        
+        /**
+	 * Function to get the ModtrackerDisplay Value, for the current field type with given DB Insert Value
+	 * @param <Object> $fieldName
+	 * @param <Object> $value
+	 * @param <Object> $recordModel
+	 * @return $value
+	 */
+	public static function getModTrackerDisplayValue($fieldName,$value,$recordModel) {
+		$userModel = Users_Privileges_Model::getCurrentUserModel();
+		if(empty($value)){
+			return '';
+		}
+		if($recordModel){
+			$startDate = $recordModel->get('date_start');
+			$endDate = $recordModel->get('due_date');
+			if($fieldName == 'time_start') {
+				//Added this check to show start time according to start date of calendar record
+				//to avoid day light saving issue for -(UTC London) => UTC+1:00
+				$dateTime = new DateTimeField($startDate.' '.$value);
+				$value = $dateTime->getDisplayTime();
+			}
+			if($fieldName == 'time_end'){
+				//Added this check to show end time according to end date of calendar record
+				//to avoid day light saving issue for -(UTC London) => UTC+1:00
+				$dateTime = new DateTimeField($endDate.' '.$value);
+				$value = $dateTime->getDisplayTime();
+
+			}
+		}
+		if($userModel->get('hour_format') == '12'){
+			return Vtiger_Time_UIType::getTimeValueInAMorPM($value);
+		}
+		return $value;
+	}
 
 }
\ No newline at end of file
diff --git a/modules/Calendar/views/TaskManagement.php b/modules/Calendar/views/TaskManagement.php
index 8081ef89312cfaea53675ed1bef99dd7cb2ae142..0ce8227307d238121df3cb0e74cfd037aeba5f01 100644
--- a/modules/Calendar/views/TaskManagement.php
+++ b/modules/Calendar/views/TaskManagement.php
@@ -118,7 +118,8 @@ class Calendar_TaskManagement_View extends Vtiger_Index_View {
 			}
 		}
 		if($color=='#ffffff' || empty($color)) {
-			$color = '#'.dechex(rand(0x000000, 0xFFFFFF));
+			$color = '#' . str_pad(dechex(rand(0, 50)), 2, '0') . str_pad(dechex(rand(0, 50)), 2, '0') . str_pad(dechex(rand(0, 50)), 2, '0');
+
 		}
 		return $color;
 	}
diff --git a/modules/Vtiger/views/Detail.php b/modules/Vtiger/views/Detail.php
index 7def95531b5eab0c1290cff6a460fa46fd7ffba3..421a79e5ade372180a1385708ce7db28635a5241 100644
--- a/modules/Vtiger/views/Detail.php
+++ b/modules/Vtiger/views/Detail.php
@@ -439,7 +439,6 @@ class Vtiger_Detail_View extends Vtiger_Index_View {
 		$recordModel = Vtiger_Record_Model::getInstanceById($parentRecordId);
 		$viewer = $this->getViewer($request);
 		$viewer->assign('SOURCE',$recordModel->get('source'));
-        $recentActivities = ModTracker_Record_Model::getUpdates($parentRecordId, $pagingModel,$moduleName);
 
         $totalCount = ModTracker_Record_Model::getTotalRecordCount($parentRecordId);
         $pageLimit = $pagingModel->getPageLimit();
diff --git a/modules/Vtiger/views/RecordQuickPreview.php b/modules/Vtiger/views/RecordQuickPreview.php
index 7f869135ed5d777fd8d6afa5313327c95dd57b01..0f07610d22a1f80ee8f4e1fa5202cf8a168af07e 100644
--- a/modules/Vtiger/views/RecordQuickPreview.php
+++ b/modules/Vtiger/views/RecordQuickPreview.php
@@ -72,6 +72,7 @@ class Vtiger_RecordQuickPreview_View extends Vtiger_Index_View {
 		}
 		$viewer->assign('PAGING_MODEL', $pagingModel);
 		$viewer->assign('RECENT_ACTIVITIES', $recentActivities);
+                $viewer->assign('RECORD_ID', $recordId);
 		$viewer->view('ListViewQuickPreview.tpl', $moduleName);
 	}