diff --git a/tools/clean_dates_blogs_post.py b/tools/clean_dates_blogs_post.py
new file mode 100644
index 0000000..4f6d2f6
--- /dev/null
+++ b/tools/clean_dates_blogs_post.py
@@ -0,0 +1,43 @@
+from flask import Flask
+import sqlite3
+import time
+import re
+
+app = Flask( 'pywallter' )
+app.config.from_pyfile('config.py')
+
+
+########################### Variables Globales #################################
+extensionimg = app.config.get('EXT_IMG')
+DATABASE = app.config.get('DATABASE')
+
+conn = sqlite3.connect(DATABASE) # Connexion à la base de donnée
+cursor = conn.cursor() # Création de l'objet "curseur"
+cursor.execute("""SELECT title, creation_date, last_updated FROM Blog_posts """ )
+list_posts=cursor.fetchall()
+for post in list_posts:
+    title=post[0]
+    tmp = re.sub(r'[^a-zA-Z0-9 ]', '', title.rstrip())
+    title_id = tmp.replace(' ', '-')
+    newDatePost = ""
+    newDateUdatedPost = ""
+    if post[1] != '':
+        try:
+            date_post = time.strptime(post[1], '%d/%m/%Y %H:%M:%S')
+        except:
+            print(title +'-- Posted at: '+ post[1] + ' Not modified: The date is not in the old format')
+            newDatePost = post[1]
+        else: 
+            newDatePost = time.strftime("%Y-%m-%d %H:%M:%S", date_post)
+    if post[2] != '':
+        try:
+            last_updated_post = time.strptime(post[2], '%d/%m/%Y %H:%M:%S')
+        except: 
+            print(title + '-- Updated at '+ post[2] + ' Not modified: The date is not in the old format')
+            newDateUpdatedPost = post[2]
+        else:
+            newDateUpdatedPost = time.strftime("%Y-%m-%d %H:%M:%S", last_updated_post)
+        
+    cursor.execute("""UPDATE Blog_posts set creation_date=?, last_updated=?, title_id=? WHERE title=?""", (newDatePost, newDateUpdatedPost, title_id, title))
+    
+conn.commit()