Check if a Given Date Is a Weekend in JavaScript

A weekend can be identified in JavaScript by checking the day of the week for a given Date object.

• getDay() returns 0 for Sunday and 6 for Saturday.
• toString() can be used to extract "Sat" or "Sun" from the date string.
• If the day is Saturday or Sunday, the given date is considered a weekend.

Approach 1: Using getDay() Method

The getDay() method returns the day of the week as a number, where 0 represents Sunday and 6 represents Saturday. If the returned value is 0 or 6, the date is a weekend.

let date = new Date();

console.log("Date = " + date);

function gfg_Run() {
    let day = date.getDay();
    let isWeekend = (day === 6 || day === 0);

    if (isWeekend) {
        console.log("Today is Weekend.");
    } else {
        console.log("Today is not Weekend.");
    }
}

gfg_Run();

Date = Wed Aug 26 2026 08:53:04 GMT+0000 (Coordinated Universal Time)
Today is not Weekend.

Approach 2: Using toString() Method

The toString() method converts the Date object into a string. We can use substring() to extract the first three characters and check whether they are "Sat" or "Sun".

let date = new Date("2024-09-29");

console.log("Date = " + date);

function gfg_Run() {
    let day = date.toString();

    if (day.substring(0, 3) === "Sat" ||
        day.substring(0, 3) === "Sun") {
        console.log("Given day is Weekend.");
    } else {
        console.log("Given day is not Weekend.");
    }
}

gfg_Run();