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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
0/116
Edit
Armenianhy-AMhyAM
0/116
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Banglabn-BDbnBD
0/116
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Belarusianbe-BYbeBY
0/116
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Bulgarianbg-BGbgBG
0/116
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Catalanca-EScaES
0/116
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Chinese (Hong Kong)zh-HKzhHK
0/116
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Chinese (Simplified)zh-CNzhCN
0/116
Edit
Chinese (Taiwan)zh-TWzhTW
0/116
Edit
Croatianhr-HRhrHR
0/116
Edit
Czechcs-CZcsCZ
0/116
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Danishda-DKdaDK
0/116
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Dutchnl-NLnlNL
0/116
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Finnishfi-FIfiFI
0/116
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Frenchfr-FRfrFR
92/116
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Germande-DEdeDE
88/116
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Greekel-GRelGR
0/116
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Hebrewhe-ILheIL
109/116
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Hungarianhu-HUhuHU
0/116
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Icelandicis-ISisIS
0/116
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Indonesianid-IDidID
0/116
Edit
Italianit-ITitIT
88/116
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Japaneseja-JPjaJP
0/116
Edit
Koreanko-KRkoKR
0/116
Edit
Norwegian (Bokmål)nb-NOnbNO
88/116
Edit
Norwegian (Nynorsk)nn-NOnnNO
0/116
Edit
Persianfa-IRfaIR
0/116
Edit
Polishpl-PLplPL
95/116
Edit
Portuguesept-PTptPT
88/116
Edit
Portuguese (Brazil)pt-BRptBR
88/116
Edit
Romanianro-ROroRO
88/116
Edit
Russianru-RUruRU
107/116
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Slovaksk-SKskSK
0/116
Edit
Spanishes-ESesES
95/116
Edit
Swedishsv-SEsvSE
0/116
Edit
Thaith-THthTH
0/116
Edit
Turkishtr-TRtrTR
115/116
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Ukrainianuk-UAukUA
0/116
Edit
Urdu (Pakistan)ur-PKurPK
0/116
Edit
Vietnamesevi-VNviVN
0/116
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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.