Material UI DatePicker Showing Wrong Date

The displayed date in Material UI Pickers is 1 day behind the selected date: I selected 25th, the value in formik is 25th but the value displayed on the form is 24th. '@date-io/

Solution 1:

I've faced the same problem

After all, I added a parseISO method on my date, you need to specify the timezone of the component.

// import parseISO
import { parseISO } from 'date-fns'; 

On value (property which is date)

<KeyboardDatePicker
  format={DateFormatEnum.DayMonthYearPtBr}
  label="Date"
  value={parseISO(salesPage.dateAt)}
  onChange={handleDateAtOnChange}
/>

On change

import { format } from 'date-fns';
import { convertToLocalTime } from 'date-fns-timezone';


export const DEFAULT_DATE_FORMAT = 'yyyy-MM-dd';

/**
 * Format a date to a string
 *
 * @param date
 */
export const formatDate = (date) => {
  if (!date) return new Date().toLocaleString();

  // Get the timezone from browser using native methods
  const timezone = Intl.DateTimeFormat().resolvedOptions().timeZone;
  const dateTmp = Date.parse(date.toLocaleString());

  const localDate = convertToLocalTime(dateTmp, {
    timeZone: timezone,
  });

  return format(localDate, DEFAULT_DATE_FORMAT);
};

const handleDateAtOnChange = (event) => {
  formatDate(event.target.value)
}

Solution 2:

its because datepicker takes input date-time in UTC ISOformat Solution - Convert UTC to local to ISO format

because server only accepts ISO date-time so I converted UTC to local timezone and sent it to server in ISO format

declare this somewhere

function convertUTCDateToLocalDate(date) {
    var newDate = new Date(date.getTime() - date.getTimezoneOffset()*60*1000);
    return newDate;   
}

and do this where you need local datetime in ISO format convertUTCDateToLocalDate(date).toISOString()