diff --git a/src/components/calendar/calendar.tsx b/src/components/calendar/calendar.tsx
index bb30ebd..aa40dd9 100644
--- a/src/components/calendar/calendar.tsx
+++ b/src/components/calendar/calendar.tsx
@@ -2,6 +2,7 @@ import React, { ReactChild } from "react";
 import { ViewMode } from "../../types/public-types";
 import { TopPartOfCalendar } from "./top-part-of-calendar";
 import {
+  getCachedDateTimeFormat,
   getDaysInMonth,
   getLocaleMonth,
   getWeekNumberISO8601,
@@ -177,7 +178,7 @@ export const Calendar: React.FC<CalendarProps> = ({
     const dates = dateSetup.dates;
     for (let i = 0; i < dates.length; i++) {
       const date = dates[i];
-      const bottomValue = Intl.DateTimeFormat(locale, {
+      const bottomValue = getCachedDateTimeFormat(locale, {
         hour: "numeric",
       }).format(date);
 
diff --git a/src/helpers/date-helper.ts b/src/helpers/date-helper.ts
index c4a682a..b784a85 100644
--- a/src/helpers/date-helper.ts
+++ b/src/helpers/date-helper.ts
@@ -12,7 +12,7 @@ type DateHelperScales =
   | "millisecond";
 
 const intlDTCache = {};
-const getCachedDateTimeFormat = (
+export const getCachedDateTimeFormat = (
   locString: string | string[],
   opts: DateTimeFormatOptions = {}
 ): DateTimeFormat => {
@@ -25,6 +25,7 @@ const getCachedDateTimeFormat = (
   return dtf;
 };
 
+
 export const addToDate = (
   date: Date,
   quantity: number,
@@ -189,3 +190,4 @@ export const getWeekNumberISO8601 = (date: Date) => {
 export const getDaysInMonth = (month: number, year: number) => {
   return new Date(year, month + 1, 0).getDate();
 };
+