3 Answers, 1 is accepted
Hi Matjaz,
The week-first-day variable is controlled by the currently loaded `internationalization` context with the default being `en` leading to showing `Sunday` as the first day of the week.
The week-first-day will dynamically update if different context is loaded. For example, if `en-GB` localization is loaded, the first day of the week would be `Monday`. Please check out the following example demonstrating how to load Internationalization context:
https://stackblitz.com/edit/react-ugbidg?file=app/main.tsx
Please let me know if this helps!
Regards,
Kiril
Progress Telerik
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Hi Kril,
yes, it works.
Thank you, Matjaz

Hi Jefferson,
I can agree that it will be convenient in some scenarios to have such property, but that will defeat the use of the cdrl locale data within the component. As a workaround, you can override the firstDate of the loaded weekData as shown in the following example:

Solution for Telerik UI for React, in pt-BR:
weekData.supplemental.weekData.firstDay.BR = 'mon'; // Brazil
// Other
weekData.supplemental.weekData.firstDay.PT = 'mon';
weekData.supplemental.weekData.firstDay.US = 'mon';