diff --git a/src/DDSERVICES/REST/getLastUpdate.php b/src/DDSERVICES/REST/getLastUpdate.php
new file mode 100644
index 0000000..6752f90
--- /dev/null
+++ b/src/DDSERVICES/REST/getLastUpdate.php
@@ -0,0 +1,38 @@
+<?php
+  
+/** 
+*   @file getLastUpdate.php
+*   @brief Returns last modif of *_times.nc for a given DataSet 
+*   @version $Id:  $ 
+*/
+
+    if (!$_GET['id']) exit('INPUT ERROR');
+    require_once './DDserverWeb_ini.php';
+    error_reporting(E_ERROR | E_WARNING | E_PARSE);
+
+    $replace = array("-" => "_");
+
+    $dataSet = strtr($_GET['id'], $replace); 
+
+    $referXML = baseDir."DDsys.xml";
+    $DDsys = new DOMDocument("1.0");
+    $DDsys->load($referXML);
+    $xp = new domxpath($DDsys);
+    $VI_NAME = $xp->query("//NAME[.='".$dataSet."']");
+  
+    if ($VI_NAME->item(0)->nodeValue != NULL)
+    {
+            $VI = $VI_NAME->item(0)->parentNode;
+            $location = $VI->getElementsByTagName("LOCATION")->item(0)->nodeValue;           
+            $times = $VI->getElementsByTagName("TIMES")->item(0)->nodeValue; 
+            if (!file_exists($location.$times))
+                exit('NO TIMES FILE'); 
+                
+            $cmd = 'date "+%Y-%m-%dT%H:%M:%SZ" -u -r '. $location.$times;  // for NFS      
+            $dateModif = exec($cmd);       
+            exit($dateModif); 
+    }
+    else {
+            exit('NO SUCH DATASET');
+    }
+?>
diff --git a/src/DDSERVICES/REST/getStartStop.php b/src/DDSERVICES/REST/getStartStop.php
new file mode 100644
index 0000000..de7dcee
--- /dev/null
+++ b/src/DDSERVICES/REST/getStartStop.php
@@ -0,0 +1,41 @@
+<?php
+  
+/** 
+*   @file getStartStop.php
+*   @brief Returns GlobalStart - GlobalStop for a given DataSet 
+*   @version $Id:  $ 
+*/
+
+		if (!$_GET['id']) exit('INPUT ERROR');
+		require_once './DDserverWeb_ini.php';
+		error_reporting(E_ERROR | E_WARNING | E_PARSE);
+
+		$replace = array("-" => "_");
+
+		$dataSet = strtr($_GET['id'], $replace); 
+
+		$referXML = baseDir."DDsys.xml";
+		$DDsys = new DOMDocument("1.0");
+		$DDsys->load($referXML);
+		$xp = new domxpath($DDsys);
+		$VI_NAME = $xp->query("//NAME[.='".$dataSet."']");
+
+		if ($VI_NAME->item(0)->nodeValue != NULL)
+		{
+				$VI = $VI_NAME->item(0)->parentNode;
+				$location = $VI->getElementsByTagName("LOCATION")->item(0)->nodeValue;           
+				$info = basename($VI->getElementsByTagName("INFO")->item(0)->nodeValue, '.nc').'.xml'; 
+				if (!file_exists($location.$info))
+						exit('NO INFO XML');
+				
+				$infoDom = new DOMDocument("1.0");
+				$infoDom->loadXML(file_get_contents($location.$info)); // for NFS
+
+				$Start = $infoDom->getElementsByTagName("GlobalStart")->item(0)->nodeValue;
+				$Stop = $infoDom->getElementsByTagName("GlobalStop")->item(0)->nodeValue;
+						exit($Start.",".$Stop);
+		}
+		else {
+				exit('NO SUCH DATASET');
+		}
+?>
diff --git a/src/DDSERVICES/SOAP/DDserverWeb.php b/src/DDSERVICES/SOAP/DDserverWeb.php
index f09ee71..e8b872e 100644
--- a/src/DDSERVICES/SOAP/DDserverWeb.php
+++ b/src/DDSERVICES/SOAP/DDserverWeb.php
@@ -307,20 +307,45 @@
         }
     }
 
+/**     
+*       Returns date of last modif of *times.nc  in DD Base 
+*/ 
 
+        function getLastUpdate($dataSet) 
+         {                  
+				$referXML = baseDir."/DDsys.xml";
+            $DDsys = new DOMDocument("1.0");
+            $DDsys->load($referXML);
+            $xp = new domxpath($DDsys);
+            $VI = $xp->query("//NAME[.='".$dataSet."']"); 
+ 
+            if ($VI->item(0)->nodeValue != NULL)
+            {
+					$location = $VI->item(0)->parentNode->getElementsByTagName("LOCATION")->item(0)->nodeValue;           
+					$times = $VI->getElementsByTagName("TIMES")->item(0)->nodeValue; 
+					if (!file_exists($location.$times))
+						return null; 
+                
+					$cmd = 'date "+%Y-%m-%dT%H:%M:%SZ" -u -r '. $location.$times;  // for NFS      
+					$dateModif = exec($cmd);    
+						return $dateModif; 
+				 }
+				 
+				 return null;
+          }
+          
 /**     
 *       Returns String Start-Stop for local DataSet  in DD Base 
 */ 
 
         function getStartStop($dataSet) 
           {                  
-            if ($dataSet != "compound") {  
-                      $referFile = baseDir."/refer.nc";          
-                      $cmd = DDBASEBIN."/StartStop ".$referFile." ".$dataSet;  
-                      $res = system($cmd);
-                        
-                      return $res;
-              }
+
+					$referFile = baseDir."/refer.nc";          
+					$cmd = DDBASEBIN."/StartStop ".$referFile." ".$dataSet;  
+					$res = system($cmd);
+					
+					return $res;
           }
 
 /**     
diff --git a/src/DDSERVICES/SOAP/dd.wsdl.in b/src/DDSERVICES/SOAP/dd.wsdl.in
index 1c089c8..bb8a2a4 100644
--- a/src/DDSERVICES/SOAP/dd.wsdl.in
+++ b/src/DDSERVICES/SOAP/dd.wsdl.in
@@ -62,6 +62,12 @@
 <message name='getStartStopResponse'>
  <part name='Result' type='xsd:string'/>
 </message>
+<message name='getLastUpdateRequest'>
+  <part name='dataSet' type='xsd:string'/>
+</message>
+<message name='getLastUpdateResponse'>
+ <part name='Result' type='xsd:string'/>
+</message>
 <message name='getInfoRequest'>
   <part name='dataSet' type='xsd:string'/>
   <part name='infoName' type='xsd:string'/>
@@ -147,6 +153,10 @@
    <operation name='getStartStop'>
     <input message='tns:getStartStopRequest'/>
     <output message='tns:getStartStopResponse'/>
+  </operation>  
+  <operation name='getLastUpdate'>
+    <input message='tns:getLastUpdateRequest'/>
+    <output message='tns:getLastUpdateResponse'/>
   </operation>   
   <operation name='getInfo'>
     <input message='tns:getInfoRequest'/>
@@ -240,7 +250,18 @@
       <soap:body use='encoded'
         encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/>
     </output>
-  </operation>    
+  </operation>  
+  <operation name='getLastUpdate'>
+    <soap:operation soapAction='getLastUpdate'/>
+    <input>
+      <soap:body use='encoded'
+        encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/>
+    </input>
+    <output>
+      <soap:body use='encoded'
+        encodingStyle='http://schemas.xmlsoap.org/soap/encoding/'/>
+    </output>
+  </operation>   
   <operation name='getInfo'>
     <soap:operation soapAction='getSInfo'/>
     <input>
--
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