Get last week's Date using JavaScript

Get last week's Date using JavaScript #

To get last week's date, use the Date() constructor to create a new date, passing it the year, month and the day of the month - 7 to get the date of a week ago.

Copied!
function getLastWeeksDate() {
  const now = new Date();

  return new Date(now.getFullYear(), now.getMonth(), now.getDate() - 7);
}

// 👇️ Sun Jan 09 2022 00:00:00
console.log(getLastWeeksDate());

// 👇️ Sun Jan 16 2022 15:26:30
console.log(new Date());

We used the following 3 Date related methods:

• Date.getFullYear method - returns a four-digit number representing the year that corresponds to a date.

• Date.getMonth - returns an integer between 0 (January) and 11 (December) and represents the month for a given date. Yes, unfortunately the getMonth method is off by 1.

• Date.getDate - returns an integer between 1 and 31 representing the day of the month for a specific date.

By subtracting 7 days from the current date, we get last week's date.

If you want to preserve the time, you can convert 1 week to milliseconds and subtract the result from the milliseconds of the current date.

Copied!
function getLastWeeksDate() {
  const now = new Date();

  return new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000);
}

// 👇️ Sun Jan 09 2022 15:34:30
console.log(getLastWeeksDate());

// 👇️ Sun Jan 16 2022 15:34:30
console.log(new Date());

The getTime method returns the number of milliseconds since the unix epoch for the specific Date.

You can also take a Date object as a parameter in the function to get the date of the previous week for any Date.