React-datepicker with a Formik form

Update to Dani Vijay’s answer.
This uses useField and useFormikContext from Formik v2, to simplify usage of the component.

DatePicker.jsx:

import React from "react";
import { useField, useFormikContext } from "formik";
import DatePicker from "react-datepicker";

export const DatePickerField = ({ ...props }) => {
  const { setFieldValue } = useFormikContext();
  const [field] = useField(props);
  return (
    <DatePicker
      {...field}
      {...props}
      selected={(field.value && new Date(field.value)) || null}
      onChange={val => {
        setFieldValue(field.name, val);
      }}
    />
  );
};

Usage (see Dani’s answer for the complete form declaration):

...
<DatePickerField name="date" />
...

Code at codesandbox