I have a calendar that i'm trying set a reminder to a specific day. This day i set in a form but i don't know how to set reminder for a day on calendar.

   {calendar.map((week, index) => 
          <div key={index} className="week">
            {week.map((day, index) => 
            <>
              <div key={index} className="day " onClick={() => !beforeToday(day) && setValue(day) || setIsOpenModal(true)}>
                <div className={dayStyles(day, value)}>
                  {day.format('D').toString()}
                  <div className='reminder'>
                    {formData.map(item => getDay === item.Date ? (
                      <>
                      <p>{item.Reminder}</p>
                      <p>{item.Date}</p>
                      <p>{item.Time}</p>
                      <p>{item.City}</p>
                    </>
                    ) : (
                        ''
                    ))}
                  </div>
                </div>
              </div>  
            </>
            )}
          </div>
        )}