diff --git a/src/services/file.js b/src/services/file.js
index 9cb1096..94001f1 100644
--- a/src/services/file.js
+++ b/src/services/file.js
@@ -47,7 +47,7 @@ class FileService {
   deleteOldFiles() {    
     const directoryPath = path.join(basedir, 'public/csv');
     const files = fs.readdirSync(directoryPath);
-    const oneDay = 24 * 60 * 60 * 1000; // Un jour en millisecondes
+    const oneDay = 48 * 60 * 60 * 1000; // Un jour en millisecondes
     const currentDate = new Date();
     
     emitter.emit('deleteOldFiles.start', { files, directoryPath });
@@ -76,14 +76,14 @@ class FileService {
     emitter.emit('checkLastOperationDate.start', { dateFilePath });
 
     try {
-      const oneDay = 24 * 60 * 60 * 1000; // Un jour en millisecondes
+      const oneDay = 48 * 60 * 60 * 1000; // Un jour en millisecondes
       const currentDate = new Date();
 
 
       // Check if file exists and create it if not with a default date of 48 hours ago
       if (!fs.existsSync(dateFilePath)) {
         emitter.emit('checkLastOperationDate.created', { dateFilePath });
-        const twodaysdate = new Date(currentDate - (2*oneDay));
+        const twodaysdate = new Date(currentDate - (1.5*oneDay));
         fs.writeFileSync(dateFilePath, twodaysdate.toISOString(), 'utf-8');
       }