diff --git a/Backend-libXML/main.py b/Backend-libXML/main.py
index b34ce99..1af4e90 100644
--- a/Backend-libXML/main.py
+++ b/Backend-libXML/main.py
@@ -10,12 +10,12 @@ app = Flask(__name__)
 
 @app.route("/xpath", methods=["POST"])
 def xpath():
+    start = time.time_ns()
     request_data = request.get_json()
     xml = request_data['data']
     xpath = request_data['process']
     
     response = dict()
-    start = time.time_ns()
     try:
         response['result'] = Parser.xpath(xml, xpath)
         response['status'] = "OK"
@@ -30,12 +30,12 @@ def xpath():
 
 @app.route("/xsd", methods=["POST"])
 def xsd():
+    start = time.time_ns()
     request_data = request.get_json()
     xml = request_data['data']
     xsd = request_data['process']
 
     response = dict()
-    start = time.time_ns()
     try:
         response['result'] = Parser.xsd(xml, xsd)
         response['status'] = "OK"
@@ -50,12 +50,12 @@ def xsd():
 
 @app.route("/xslt", methods=["POST"])
 def xslt():
+    start = time.time_ns()
     request_data = request.get_json()
     xml = request_data['data']
     xslt = request_data['process']
 
     response = dict()
-    start = time.time_ns()
     try:
         response['result'] = Parser.xslt(xml, xslt)
         response['status'] = "OK"
@@ -66,4 +66,4 @@ def xslt():
         exec_time = (time.time_ns() - start) / 10**6
         response['time'] = f"{exec_time:.03f}"
         response['processor'] = "libxml2 over lxml"
-        return json.dumps(response)
\ No newline at end of file
+        return json.dumps(response)