why .date-picker show negative year value?
07:44 28 Jan 2026

I have a data time picker in html like this :

now clicking the input it shows a celendare.

double clocking the year value shows negative year values like : -2021

I have tried this javascript code and it did not work :

$('.date-picker').datetimepicker({
format: 'MM/DD/YYYY',
minDate: '1900-01-01',
useCurrent: false, // Prevents auto-setting to current date/time on error
viewMode: 'days'
});

any reason ?

If I use

$('.date-picker').datepicker({
            format: 'mm/dd/yyyy',
            startDate: '01/01/1900',
            endDate: '12/31/2030',
            autoclose: true,
            todayHighlight: true
        });

I am getting TypeError: $(...).datepicker is not a function ?

jquery-ui-datepicker