jQuery(document).ready(function(){ jQuery.datepicker.setDefaults({ dateFormat: 'dd/mm/yy', firstDay: 1 }); var unavailableDates = ['2018-01-01','2025-01-01','2026-01-01']; function unavailable(date) { var ymd = date.getFullYear() + "-" + ("0"+(date.getMonth()+1)).slice(-2) + "-" + ("0"+date.getDate()).slice(-2); var day = new Date(ymd).getDay(); if (jQuery.inArray(ymd, unavailableDates) < 0) { [...] Read More