How to get yesterday’s date using JavaScript

It is very simple!

Find today’s date and subtract by one to get yesterday’s date.

Here is the code:

const today = new Date();
const yesterday = new Date();
yesterday.setDate(today.getDate() - 1);

console.log('Today\'s date & time: ', today);
console.log('Yesterday\'s date & time: ', yesterday);
console.log('');
console.log('Today\'s date: ', today.toDateString());
console.log('Yesterday\'s date: ', yesterday.toDateString());
console.log('');
console.log('Today\'s Epoch time: ', today.getTime());
console.log('Yesterday\'s Epoch time: ', yesterday.getTime());

Output

Today's date & time:  2022-03-12T17:45:29.734Z
Yesterday's date & time:  2022-03-11T17:45:29.734Z

Today's date:  Sat Mar 12 2022
Yesterday's date:  Fri Mar 11 2022

Today's Epoch time:  1647107129734
Yesterday's Epoch time:  1647020729734

new Date() will fetch the current date and time. Pass it to setDate() function along with minus 1 to fetch today’s date. You can use setUTCHours() and pass 0 to set the time 0.

today.setUTCHours(0, 0, 0, 0);

Today's date & time:  2022-03-12T00:00:00.000Z