Aquí hay un ejemplo de trabajo donde DatePicker se inicializa con la fecha de hoy:

 import * as React from 'react' import TextField from '@mui/material/TextField' import { AdapterDateFns } from '@mui/x-date-pickers/AdapterDateFns' import { LocalizationProvider } from '@mui/x-date-pickers/LocalizationProvider' import { DatePicker } from '@mui/x-date-pickers/DatePicker' export default function BasicDatePicker() { // initialized with today's date, new Date() const [value, setValue] = React.useState(new Date()) return ( <LocalizationProvider dateAdapter={AdapterDateFns}> <DatePicker label="Date picker" value={value} onChange={(newValue) => setValue(newValue)} renderInput={(params) => <TextField {...params} />} /> </LocalizationProvider> ) }