If else statement malfunction in callback function in JavaScript

I am learning Web development and using JavaScript and express to code the back-end. I can't figure out why my if else statement is malfunctioning. The problem is it only shows what is written in else statement on the website page. Below is my code -

const express = require("express");
const bodyParser = require("body-parser");

const app = express();

app.get("/", function(request,response){

    var today = new Date();
    if(today.getDay() === 6 || today.getDay() === 7) {
        response.send("Yeh! it's the weekend");
    }else {
        response.send("Boo!, I have to work");
    }
});

app.listen(3000 , function() {
    console.log("Server is running at port 3000");
});