datepicker.html

<div class="input-group date">
                            <input type="text" asp-for="DataPlanejada" class="form-control datepicker-button autocomplete="off">
                            <div class="input-group-append">
                                <label class="input-group-text" asp-for="DataPlanejada"><i class="fa fa-calendar"></i></label>
                            </div>
                        </div>



$('.datepkr_ano, .input-group.ano datepkr_ano').datepicker({
    format: "dd/mm/yyyy",
    //defaultViewDate: { year: 2021, month: 1, day: 1 },
    weekStart: 1,
    minViewMode: 2,
    maxViewMode: 2,
    todayBtn: "linked",
    clearBtn: true,
    language: "pt-BR",
    daysOfWeekHighlighted: "0,6",
    autoclose: true
    //orientation: "auto"
});