var
    holidays = require('holiday-br');
 
// Get a list of holidays between two dates
curYearHolidays = holidays.between(new Date(2015,0,1),new Date(2016,0,1));
 
// Check if a specific date is a holiday
if ( holidays.isHoliday(new Date(2048,4-1,25)) ) {
    console.log("Long live freedom!");
}