Date adapter

React chapter 43 · MUI X · LocalizationProvider · source: mui/mui-x/packages/x-date-pickers

The problem

The DatePicker imports dayjs (or Date, or luxon) directly. Switching libraries means rewriting format, addDays, and startOfMonth in every picker. Ant Design used to lock you to moment.

The pattern that fixes it

An adapter interface: format, add, toNative. LocalizationProvider injects it. Picker code talks to the adapter, not to dayjs. Swap AdapterDayjs for AdapterDateFns and the UI does not change.

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