What Date is 21 Days Ago From Today?

Are you trying to figure out what the date was twenty-one days ago?

icon for a calendar with one day highlighted red

Date 21 Days Ago

Friday September 1, 2023

The date 21 days ago from today is Friday September 1, 2023. This calculation is made using the date today, which is September 22, 2023.

You can validate this result using our days from today calculator or our time duration calculator.

The following chart shows the date 21 days ago from today and various other days.
Start DateDate 21 Days Prior
September 18, 2023August 28, 2023
September 19, 2023August 29, 2023
September 20, 2023August 30, 2023
September 21, 2023August 31, 2023
September 22, 2023September 1, 2023
September 23, 2023September 2, 2023
September 24, 2023September 3, 2023
September 25, 2023September 4, 2023
September 26, 2023September 5, 2023

How to Calculate the Date 21 Days Ago

You can figure out the date twenty-one days ago by hand using a calendar. Look at the calendar and look backward one day at a time while also subtracting one from 21 for each day you look backward.

You can also move backward one week at a time while subtracting seven from 21 for each week you look backward.

Continue this process until your original number has reached zero after subtracting the days. This is the date 21 days ago.

You can use a tool such as our day counter to simplify this process.

21 Weekdays Ago From Today

If you want to consider only weekdays and ignore days that fall on the weekend, then twenty-one weekdays ago is Thursday August 24, 2023.

Date 21 Weekdays Ago

Thursday August 24, 2023

It's important to note that this date does not consider holidays that may fall on a weekday. So, you'll need to adjust this to account for holidays if you're trying to calculate the date 21 business days ago.

More Dates Relative to Today