feat: add format date(#40)

src/lib/date-helpers.ts

@@ -0,0 +1,12 @@
+import dayjs from 'dayjs';
+import i18next from 'i18next';
+
+export const getTimeSlot = (start: string, end: string) => {
+  const startDay = dayjs(start).format('HH:mm');
+  const endDay = dayjs(end).format('HH:mm');
+
+  return i18next.t('~:dry-wash.washTime.timeSlot', {
+    start: startDay,
+    end: endDay,
+  });
+};