diff --git a/src/utils/helpers.ts b/src/utils/format.ts
similarity index 85%
rename from src/utils/helpers.ts
rename to src/utils/format.ts
index aaa1111..bbb2222 100644
--- a/src/utils/helpers.ts
+++ b/src/utils/format.ts
@@ -1,5 +1,5 @@
-export function formatDate(date: Date): string {
-  return date.toISOString();
+export function formatDate(date: Date, locale?: string): string {
+  return locale ? date.toLocaleDateString(locale) : date.toISOString();
 }

 export function capitalize(str: string): string {
