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Event Calendar - Localization

Translate UI labels and date formats to support a global audience.

The default locale of MUI X is English (United States).

Translation keys

Use the localeText prop to pass in your own text and translations. You can find all supported translation keys in the source on GitHub. The demo below customizes the labels of the view switcher buttons.

July 2025

Alice's Birthday

Morning Run

Team Meeting

Gym Class

Yoga

1-on-1 with Sarah

Code Review

4th of July BBQ

Locale text

Use the theme to configure the locale text:

import { createTheme, ThemeProvider } from '@mui/material/styles';
import { EventCalendar } from '@mui/x-scheduler/event-calendar';
import { frFR } from '@mui/x-scheduler/locales';
// Or import { frFR } from '@mui/x-scheduler-premium/locales';

const theme = createTheme(
  {
    palette: {
      primary: { main: '#1976d2' },
    },
  },
  frFR,
);

<ThemeProvider theme={theme}>
  <EventCalendar />
</ThemeProvider>;

The createTheme() function accepts any number of arguments. If you're already using the translations of the core components, you can add frFR as a new argument. The same import works for Event Calendar Premium, which extends Event Calendar.

import { createTheme, ThemeProvider } from '@mui/material/styles';
import { EventCalendar } from '@mui/x-scheduler/event-calendar';
import { frFR } from '@mui/x-scheduler/locales';
import { frFR as pickersFrFR } from '@mui/x-date-pickers/locales';
import { frFR as coreFrFR } from '@mui/material/locale';

const theme = createTheme(
  {
    palette: {
      primary: { main: '#1976d2' },
    },
  },
  frFR, // x-scheduler translations
  pickersFrFR, // x-date-pickers translations
  coreFrFR, // core translations
);

<ThemeProvider theme={theme}>
  <EventCalendar />
</ThemeProvider>;

To pass language translations directly to the Event Calendar without using createTheme() and ThemeProvider, load them from @mui/x-scheduler/locales.

import { EventCalendar } from '@mui/x-scheduler/event-calendar';
import { frFR } from '@mui/x-scheduler/locales';

<EventCalendar
  localeText={frFR.components.MuiEventCalendar.defaultProps.localeText}
/>;

July 2025

Alice's Birthday

Morning Run

Team Meeting

Gym Class

Yoga

1-on-1 with Sarah

Code Review

4th of July BBQ

Date locale

The localeText prop only translates the UI labels (button text, menu items, etc.). To also translate formatted dates (day names, month names, and week start day), pass a date-fns locale object.

Use the createDateLocaleTheme helper to set the date locale globally via the theme, alongside localeText translations:

import { createTheme, ThemeProvider } from '@mui/material/styles';
import { fr } from 'date-fns/locale/fr';
import { frFR, createDateLocaleTheme } from '@mui/x-scheduler/locales';
import { EventCalendar } from '@mui/x-scheduler/event-calendar';

const theme = createTheme(
  {
    palette: {
      primary: { main: '#1976d2' },
    },
  },
  frFR,
  createDateLocaleTheme(fr),
);

<ThemeProvider theme={theme}>
  <EventCalendar />
</ThemeProvider>;

You can pass the dateLocale prop directly to the component to override the theme value or avoid using a theme:

import { fr } from 'date-fns/locale/fr';
import { EventCalendar } from '@mui/x-scheduler/event-calendar';

<EventCalendar dateLocale={fr} />;

juillet 2025

Alice's Birthday

Morning Run

Team Meeting

Gym Class

Yoga

1-on-1 with Sarah

Code Review

4th of July BBQ

Long Run

LocaleBCP 47 language tagImport nameCompletionSource file
Arabic (Sudan)ar-SDarSD
0/94
Edit
Armenianhy-AMhyAM
0/94
Edit
Banglabn-BDbnBD
0/94
Edit
Belarusianbe-BYbeBY
0/94
Edit
Bulgarianbg-BGbgBG
0/94
Edit
Catalanca-EScaES
0/94
Edit
Chinese (Hong Kong)zh-HKzhHK
0/94
Edit
Chinese (Simplified)zh-CNzhCN
0/94
Edit
Chinese (Taiwan)zh-TWzhTW
0/94
Edit
Croatianhr-HRhrHR
0/94
Edit
Czechcs-CZcsCZ
0/94
Edit
Danishda-DKdaDK
0/94
Edit
Dutchnl-NLnlNL
0/94
Edit
Finnishfi-FIfiFI
0/94
Edit
Frenchfr-FRfrFR
87/94
Edit
Germande-DEdeDE
87/94
Edit
Greekel-GRelGR
0/94
Edit
Hebrewhe-ILheIL
0/94
Edit
Hungarianhu-HUhuHU
0/94
Edit
Icelandicis-ISisIS
0/94
Edit
Indonesianid-IDidID
0/94
Edit
Italianit-ITitIT
87/94
Edit
Japaneseja-JPjaJP
0/94
Edit
Koreanko-KRkoKR
0/94
Edit
Norwegian (Bokmål)nb-NOnbNO
87/94
Edit
Norwegian (Nynorsk)nn-NOnnNO
0/94
Edit
Persianfa-IRfaIR
0/94
Edit
Polishpl-PLplPL
Done 🎉
Edit
Portuguesept-PTptPT
87/94
Edit
Portuguese (Brazil)pt-BRptBR
87/94
Edit
Romanianro-ROroRO
87/94
Edit
Russianru-RUruRU
0/94
Edit
Slovaksk-SKskSK
0/94
Edit
Spanishes-ESesES
88/94
Edit
Swedishsv-SEsvSE
0/94
Edit
Thaith-THthTH
0/94
Edit
Turkishtr-TRtrTR
0/94
Edit
Ukrainianuk-UAukUA
0/94
Edit
Urdu (Pakistan)ur-PKurPK
0/94
Edit
Vietnamesevi-VNviVN
0/94
Edit

To create your own translation or customize the English text, copy this file to your project, make any needed changes, and import the locale from there. These translations follow Material UI's localization strategy.

API

See the documentation below for a complete reference to all of the props and classes available to the components mentioned here.