diff --git a/src/controllers/00-stats-controller.ts b/src/controllers/00-stats-controller.ts
index 65e057c..63dbc5c 100644
--- a/src/controllers/00-stats-controller.ts
+++ b/src/controllers/00-stats-controller.ts
@@ -32,7 +32,9 @@ export class StatsController extends Controller {
     @Query() endDate?: Date,
   ) {
     this.setHeader("Content-Type", "text/csv");
-    return json2csv(await this.quotationReport(req, limit, startDate, endDate));
+    return json2csv(await this.quotationReport(req, limit, startDate, endDate), {
+      useDateIso8601Format: true,
+    });
   }
 
   @Get("quotation")
@@ -74,7 +76,9 @@ export class StatsController extends Controller {
     @Query() endDate?: Date,
   ) {
     this.setHeader("Content-Type", "text/csv");
-    return json2csv(await this.invoiceReport(req, limit, startDate, endDate));
+    return json2csv(await this.invoiceReport(req, limit, startDate, endDate), {
+      useDateIso8601Format: true,
+    });
   }
 
   @Get("invoice")
@@ -123,7 +127,9 @@ export class StatsController extends Controller {
     @Query() endDate?: Date,
   ) {
     this.setHeader("Content-Type", "text/csv");
-    return json2csv(await this.receiptReport(req, limit, startDate, endDate));
+    return json2csv(await this.receiptReport(req, limit, startDate, endDate), {
+      useDateIso8601Format: true,
+    });
   }
 
   @Get("receipt")